diff --git a/README.md b/README.md
index 6cf6db0d9..06e75d727 100644
--- a/README.md
+++ b/README.md
@@ -205,7 +205,7 @@ Options can have properties `separator` (string used to separate errors, ", " by
 ## Options
 
 - _allErrors_: check all rules collecting all errors. Default is to return after the first error.
-- _removeAdditional_: remove additional properties. Default is not to remove. If the option is 'all', then all additional properties are removed, regardless of `additionalProperties` keyword in schema (and no validation is made for them). If the option is `true` (or truthy), only additional properties with `additionalProperties` keyword equal to `false` are removed.
+- _removeAdditional_: remove additional properties. Default is not to remove. If the option is 'all', then all additional properties are removed, regardless of `additionalProperties` keyword in schema (and no validation is made for them). If the option is `true` (or truthy), only additional properties with `additionalProperties` keyword equal to `false` are removed. If the option is 'failing', then additional properties that fail schema validation will be removed too (where `additionalProperties` keyword is schema).
 - _verbose_: include the reference to the part of the schema and validated data in errors (false by default).
 - _format_: formats validation mode ('fast' by default). Pass 'full' for more correct and slow validation or `false` not to validate formats at all. E.g., 25:00:00 and 2015/14/33 will be invalid time and date in 'full' mode but it will be valid in 'fast' mode.
 - _formats_: an object with custom formats. Keys and values will be passed to `addFormat` method.
@@ -241,6 +241,11 @@ All validation functions are generated using doT templates in dot folder. Templa
 
 ## Changes history
 
+##### 0.6.11
+
+Improved/fixed data filtering with `removeAdditional` option.
+
+
 ##### 0.6.10
 
 `removeAdditional` option allowing to remove additional properties.
diff --git a/lib/ajv.js b/lib/ajv.js
index c6452a324..6f5976b5c 100644
--- a/lib/ajv.js
+++ b/lib/ajv.js
@@ -189,8 +189,12 @@ function Ajv(opts) {
 
 
     function addInitialSchemas() {
-        if (self.opts.meta !== false)
+        if (self.opts.meta !== false) {
+            var currentRemoveAdditional = self.opts.removeAdditional;
+            self.opts.removeAdditional = false;
             addSchema(require('./refs/json-schema-draft-04.json'), META_SCHEMA_ID, true);
+            self.opts.removeAdditional = currentRemoveAdditional;
+        }
 
         var optsSchemas = self.opts.schemas;
         if (!optsSchemas) return;
diff --git a/lib/dot/PERFORMANCE.md b/lib/dot/PERFORMANCE.md
deleted file mode 100644
index a365ceb1e..000000000
--- a/lib/dot/PERFORMANCE.md
+++ /dev/null
@@ -1,24 +0,0 @@
-- [ ] $ref
-- [ ] allOf
-- [ ] anyOf
-- [ ] dependencies
-- [ ] enum
-- [ ] format
-- [ ] index
-- [ ] items (+ additionalItems)
-- [ ] maxItems
-- [ ] maxLength
-- [ ] maxProperties
-- [ ] maximum (+ exclusiveMaximum)
-- [ ] minItems
-- [ ] minLength
-- [ ] minProperties
-- [ ] minimum (+ exclusiveMinimum)
-- [ ] multipleOf
-- [ ] not
-- [ ] oneOf
-- [ ] pattern
-- [ ] properties (+ patternProperties, additionalProperties)
-- [ ] required
-- [ ] type
-- [x] uniqueItems
diff --git a/lib/dot/properties.jst b/lib/dot/properties.jst
index 4ee09bd79..4eefb582c 100644
--- a/lib/dot/properties.jst
+++ b/lib/dot/properties.jst
@@ -13,8 +13,8 @@
     , $noAdditional = $aProperties === false
     , $additionalIsSchema = typeof $aProperties == 'object'
                               && Object.keys($aProperties).length
-    , $checkAdditional = $noAdditional || $additionalIsSchema
-    , $removeAdditional = it.opts.removeAdditional;
+    , $removeAdditional = it.opts.removeAdditional
+    , $checkAdditional = $noAdditional || $additionalIsSchema || $removeAdditional;
 }}
 
 
@@ -23,10 +23,7 @@ var valid{{=$it.level}} = true;
 
 {{? $checkAdditional }}
   var propertiesSchema{{=$lvl}} = validate.schema{{=$schemaPath}} || {};
-{{?}}
-
 
-{{? $checkAdditional }}
   for (var key{{=$lvl}} in {{=$data}}) {
     var isAdditional{{=$lvl}} = propertiesSchema{{=$lvl}}[key{{=$lvl}}] === undefined;
 
@@ -58,7 +55,10 @@ var valid{{=$it.level}} = true;
             {{# def.error:'additionalProperties' }}
             {{? $breakOnError }} break; {{?}}
           {{?}}
-        {{??}}
+        {{?? $additionalIsSchema }}
+          {{? $removeAdditional == 'failing' }}
+            var {{=$errs}} = errors;
+          {{?}}
           {{ /* additionalProperties is schema */
             $it.schema = $aProperties;
             $it.schemaPath = it.schemaPath + '.additionalProperties';
@@ -70,7 +70,18 @@ var valid{{=$it.level}} = true;
           {{ var $code = it.validate($it); }}
           {{# def.optimizeValidate }}
 
-          {{? $breakOnError }} if (!valid{{=$it.level}}) break; {{?}}
+          {{? $removeAdditional == 'failing' }}
+            if (!valid{{=$it.level}}) {
+              errors = {{=$errs}};
+              if (validate.errors !== null) {
+                if (errors) validate.errors.length = errors;
+                else validate.errors = null;
+              }
+              delete {{=$data}}[key{{=$lvl}}];
+            }
+          {{??}}
+            {{? $breakOnError }} if (!valid{{=$it.level}}) break; {{?}}
+          {{?}}
         {{?}}
         {{ it.errorPath = $currentErrorPath; }}
       {{?}}
diff --git a/lib/dotjs/properties.js b/lib/dotjs/properties.js
index 352668ab2..5ca18e188 100644
--- a/lib/dotjs/properties.js
+++ b/lib/dotjs/properties.js
@@ -22,14 +22,11 @@ module.exports = function anonymous(it) {
     $aProperties = it.schema.additionalProperties,
     $noAdditional = $aProperties === false,
     $additionalIsSchema = typeof $aProperties == 'object' && Object.keys($aProperties).length,
-    $checkAdditional = $noAdditional || $additionalIsSchema,
-    $removeAdditional = it.opts.removeAdditional;
+    $removeAdditional = it.opts.removeAdditional,
+    $checkAdditional = $noAdditional || $additionalIsSchema || $removeAdditional;
   out += 'var ' + ($errs) + ' = errors;var valid' + ($it.level) + ' = true;';
   if ($checkAdditional) {
-    out += ' var propertiesSchema' + ($lvl) + ' = validate.schema' + ($schemaPath) + ' || {};';
-  }
-  if ($checkAdditional) {
-    out += ' for (var key' + ($lvl) + ' in ' + ($data) + ') { var isAdditional' + ($lvl) + ' = propertiesSchema' + ($lvl) + '[key' + ($lvl) + '] === undefined; ';
+    out += ' var propertiesSchema' + ($lvl) + ' = validate.schema' + ($schemaPath) + ' || {}; for (var key' + ($lvl) + ' in ' + ($data) + ') { var isAdditional' + ($lvl) + ' = propertiesSchema' + ($lvl) + '[key' + ($lvl) + '] === undefined; ';
     if ($pPropertyKeys.length) {
       out += ' if (isAdditional' + ($lvl) + ') { ';
       var arr1 = $pPropertyKeys;
@@ -74,7 +71,10 @@ module.exports = function anonymous(it) {
             out += ' break; ';
           }
         }
-      } else {
+      } else if ($additionalIsSchema) {
+        if ($removeAdditional == 'failing') {
+          out += ' var ' + ($errs) + ' = errors; ';
+        }
         $it.schema = $aProperties;
         $it.schemaPath = it.schemaPath + '.additionalProperties';
         $it.errorPath = it.errorPath;
@@ -86,8 +86,12 @@ module.exports = function anonymous(it) {
         } else {
           out += ' var ' + ($nextData) + ' = ' + ($passData) + '; ' + ($code) + ' ';
         }
-        if ($breakOnError) {
-          out += ' if (!valid' + ($it.level) + ') break; ';
+        if ($removeAdditional == 'failing') {
+          out += ' if (!valid' + ($it.level) + ') { errors = ' + ($errs) + '; if (validate.errors !== null) { if (errors) validate.errors.length = errors; else validate.errors = null; } delete ' + ($data) + '[key' + ($lvl) + ']; } ';
+        } else {
+          if ($breakOnError) {
+            out += ' if (!valid' + ($it.level) + ') break; ';
+          }
         }
       }
       it.errorPath = $currentErrorPath;
diff --git a/package.json b/package.json
index eccd619c8..10beb2705 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ajv",
-  "version": "0.6.10",
+  "version": "0.6.11",
   "description": "Another JSON Schema Validator",
   "main": "lib/ajv.js",
   "scripts": {
diff --git a/spec/options.spec.js b/spec/options.spec.js
index 31bfecb8c..76c17b948 100644
--- a/spec/options.spec.js
+++ b/spec/options.spec.js
@@ -7,10 +7,29 @@ var Ajv = require(typeof window == 'object' ? 'ajv' : '../lib/ajv')
 
 describe('Ajv Options', function () {
   describe('removeAdditional', function() {
+    it('should remove all additional properties', function() {
+      var ajv = Ajv({ removeAdditional: 'all' });
+
+      ajv.addSchema({
+        id: '//test/fooBar',
+        properties: { foo: { type: 'string' }, bar: { type: 'string' } }
+      });
+
+      var object = {
+        foo: 'foo', bar: 'bar', baz: 'baz-to-be-removed'
+      };
+
+      ajv.validate('//test/fooBar', object).should.equal(true);
+      object.should.have.property('foo');
+      object.should.have.property('bar');
+      object.should.not.have.property('baz');
+    });
+
+
     it('should remove properties that would error when `additionalProperties = false`', function() {
       var ajv = Ajv({ removeAdditional: true });
 
-      ajv.compile({
+      ajv.addSchema({
         id: '//test/fooBar',
         properties: { foo: { type: 'string' }, bar: { type: 'string' } },
         additionalProperties: false
@@ -27,10 +46,10 @@ describe('Ajv Options', function () {
     });
 
 
-    it.skip('should remove properties that would error when `additionalProperties` is a schema', function() {
-      var ajv = Ajv({ removeAdditional: true });
+    it('should remove properties that would error when `additionalProperties` is a schema', function() {
+      var ajv = Ajv({ removeAdditional: 'failing' });
 
-      ajv.compile({
+      ajv.addSchema({
         id: '//test/fooBar',
         properties: { foo: { type: 'string' }, bar: { type: 'string' } },
         additionalProperties: { type: 'string' }