diff --git a/library/Zend/I18n/Validator/Float.php b/library/Zend/I18n/Validator/Float.php
index af1460898cb..a2ded7fb098 100644
--- a/library/Zend/I18n/Validator/Float.php
+++ b/library/Zend/I18n/Validator/Float.php
@@ -162,6 +162,7 @@ public function isValid($value)
 
         //We have seperators, and they are flipped. i.e. 2.000,000 for en-US
         if ($groupSeparatorPosition && $decSeparatorPosition && $groupSeparatorPosition > $decSeparatorPosition) {
+            $this->error(self::NOT_FLOAT);
             return false;
         }
 
@@ -237,6 +238,7 @@ public function isValid($value)
             return true;
         }
 
+        $this->error(self::NOT_FLOAT);
         return false;
     }
 }
diff --git a/tests/ZendTest/I18n/Validator/FloatTest.php b/tests/ZendTest/I18n/Validator/FloatTest.php
index d418a76a70e..42a09dfa43d 100644
--- a/tests/ZendTest/I18n/Validator/FloatTest.php
+++ b/tests/ZendTest/I18n/Validator/FloatTest.php
@@ -220,4 +220,26 @@ public function testEqualsMessageTemplates()
         $validator = $this->validator;
         $this->assertAttributeEquals($validator->getOption('messageTemplates'), 'messageTemplates', $validator);
     }
+
+    /**
+     * @group ZF2-6647
+     * @dataProvider notFloatProvider
+     */
+    public function testNotFloat($value)
+    {
+        $this->assertFalse($this->validator->isValid($value));
+
+        $message = $this->validator->getMessages();
+        $this->assertContains('does not appear to be a float', $message['notFloat']);
+    }
+
+    public function notFloatProvider()
+    {
+        return array(
+            array(
+                'hello',
+                2.000,000
+            ),
+        );
+    }
 }