diff --git a/exec/evaluator.go b/exec/evaluator.go
index 71f1af6..6fc92a8 100644
--- a/exec/evaluator.go
+++ b/exec/evaluator.go
@@ -179,11 +179,17 @@ func (e *Evaluator) evalBinaryExpression(node *nodes.BinaryExpression) *Value {
 		if left.IsFloat() || right.IsFloat() {
 			return AsValue(left.Float() <= right.Float())
 		}
+		if left.IsString() || right.IsString() {
+			return AsValue(left.String() <= right.String())
+		}
 		return AsValue(left.Integer() <= right.Integer())
 	case tokens.GreaterThanOrEqual:
 		if left.IsFloat() || right.IsFloat() {
 			return AsValue(left.Float() >= right.Float())
 		}
+		if left.IsString() || right.IsString() {
+			return AsValue(left.String() >= right.String())
+		}
 		return AsValue(left.Integer() >= right.Integer())
 	case tokens.Equals:
 		return AsValue(left.EqualValueTo(right))
@@ -191,11 +197,19 @@ func (e *Evaluator) evalBinaryExpression(node *nodes.BinaryExpression) *Value {
 		if left.IsFloat() || right.IsFloat() {
 			return AsValue(left.Float() > right.Float())
 		}
+		if left.IsString() || right.IsString() {
+			return AsValue(left.String() > right.String())
+		}
+
 		return AsValue(left.Integer() > right.Integer())
 	case tokens.LowerThan:
 		if left.IsFloat() || right.IsFloat() {
 			return AsValue(left.Float() < right.Float())
 		}
+		if left.IsString() || right.IsString() {
+			return AsValue(left.String() < right.String())
+		}
+
 		return AsValue(left.Integer() < right.Integer())
 	case tokens.Ne:
 		return AsValue(!left.EqualValueTo(right))
diff --git a/tests/integration/tests_test.go b/tests/integration/tests_test.go
index 8896cda..838a812 100644
--- a/tests/integration/tests_test.go
+++ b/tests/integration/tests_test.go
@@ -97,4 +97,42 @@ var _ = Context("tests", func() {
 			"var1 in ['1', '2'] or var2 == '3': ok",
 		)
 	})
+	Context("https://github.com/NikolaLohinski/gonja/issues/30", func() {
+		shouldRender(
+			`{{ "a" < "b" }}`,
+			`True`,
+		)
+		shouldRender(
+			`{{ "b" > "a" }}`,
+			`True`,
+		)
+		shouldRender(
+			`{{ "a" > "b" }}`,
+			`False`,
+		)
+		shouldRender(
+			`{{ "a" == "b" }}`,
+			`False`,
+		)
+		shouldRender(
+			`{{ "a" == "a" }}`,
+			`True`,
+		)
+		shouldRender(
+			`{{ "b" >= "a" }}`,
+			`True`,
+		)
+		shouldRender(
+			`{{ "a" >= "b" }}`,
+			`False`,
+		)
+		shouldRender(
+			`{{ "b" <= "a" }}`,
+			`False`,
+		)
+		shouldRender(
+			`{{ "a" <= "b" }}`,
+			`True`,
+		)
+	})
 })