diff --git a/lib/decent_exposure/behavior.rb b/lib/decent_exposure/behavior.rb
index 9317ea2..04f5332 100644
--- a/lib/decent_exposure/behavior.rb
+++ b/lib/decent_exposure/behavior.rb
@@ -41,7 +41,7 @@ def scope(model)
     #
     # Returns a standard Class name.
     def model
-      name.to_s.classify.constantize
+      [model_namespace, name.to_s.classify].compact.join('::').constantize
     end
 
     # Public: Find an object on the supplied scope.
@@ -84,6 +84,10 @@ def build_params
     end
 
     protected
+    def model_namespace
+      options[:model_namespace].to_s
+    end
+
 
     def params_id_key_candidates
       ["#{model_param_key}_id", "#{name}_id", "id"].uniq
diff --git a/lib/decent_exposure/exposure.rb b/lib/decent_exposure/exposure.rb
index 5fc55fd..8a76945 100644
--- a/lib/decent_exposure/exposure.rb
+++ b/lib/decent_exposure/exposure.rb
@@ -82,6 +82,7 @@ def normalize_options
       normalize_parent_option
       normalize_from_option
       normalize_find_by_option
+      normalize_model_namespace_option
     end
 
     def normalize_fetch_option
@@ -138,6 +139,12 @@ def normalize_model_option
       end
     end
 
+    def normalize_model_namespace_option
+      normalize_non_proc_option :model_namespace do |value|
+        -> { value.to_s }
+      end
+    end
+
     def normalize_build_params_option
       normalize_non_proc_option :build_params do |value|
         options[:build_params_method] = value
diff --git a/lib/decent_exposure/version.rb b/lib/decent_exposure/version.rb
index e6a095d..f568db7 100644
--- a/lib/decent_exposure/version.rb
+++ b/lib/decent_exposure/version.rb
@@ -1,3 +1,3 @@
 module DecentExposure
-  VERSION = "3.0.4"
+  VERSION = "3.0.5"
 end