diff --git a/src/Symfony/Component/Validator/Constraints/ImageValidator.php b/src/Symfony/Component/Validator/Constraints/ImageValidator.php
index 902ad3bdf4..007f9daa9a 100644
--- a/src/Symfony/Component/Validator/Constraints/ImageValidator.php
+++ b/src/Symfony/Component/Validator/Constraints/ImageValidator.php
@@ -62,7 +62,7 @@ class ImageValidator extends FileValidator
             if ($width < $constraint->minWidth) {
                 $this->context->addViolation($constraint->minWidthMessage, array(
                     '{{ width }}'    => $width,
-                    '{{ min_width }}' => $constraint->minWidth
+                    '{{ min_width }}' => $constraint->minWidth,
                 ));
 
                 return;
@@ -77,7 +77,7 @@ class ImageValidator extends FileValidator
             if ($width > $constraint->maxWidth) {
                 $this->context->addViolation($constraint->maxWidthMessage, array(
                     '{{ width }}'    => $width,
-                    '{{ max_width }}' => $constraint->maxWidth
+                    '{{ max_width }}' => $constraint->maxWidth,
                 ));
 
                 return;
@@ -92,7 +92,7 @@ class ImageValidator extends FileValidator
             if ($height < $constraint->minHeight) {
                 $this->context->addViolation($constraint->minHeightMessage, array(
                     '{{ height }}'    => $height,
-                    '{{ min_height }}' => $constraint->minHeight
+                    '{{ min_height }}' => $constraint->minHeight,
                 ));
 
                 return;
@@ -107,12 +107,12 @@ class ImageValidator extends FileValidator
             if ($height > $constraint->maxHeight) {
                 $this->context->addViolation($constraint->maxHeightMessage, array(
                     '{{ height }}'    => $height,
-                    '{{ max_height }}' => $constraint->maxHeight
+                    '{{ max_height }}' => $constraint->maxHeight,
                 ));
             }
         }
 
-        $ratio = $width / $height;
+        $ratio = round($width / $height, 2);
 
         if (null !== $constraint->minRatio) {
             if (!is_numeric((string) $constraint->minRatio)) {
@@ -122,7 +122,7 @@ class ImageValidator extends FileValidator
             if ($ratio < $constraint->minRatio) {
                 $this->context->addViolation($constraint->minRatioMessage, array(
                     '{{ ratio }}' => $ratio,
-                    '{{ min_ratio }}' => $constraint->minRatio
+                    '{{ min_ratio }}' => $constraint->minRatio,
                 ));
             }
         }
@@ -135,7 +135,7 @@ class ImageValidator extends FileValidator
             if ($ratio > $constraint->maxRatio) {
                 $this->context->addViolation($constraint->maxRatioMessage, array(
                     '{{ ratio }}' => $ratio,
-                    '{{ max_ratio }}' => $constraint->maxRatio
+                    '{{ max_ratio }}' => $constraint->maxRatio,
                 ));
             }
         }
@@ -143,21 +143,21 @@ class ImageValidator extends FileValidator
         if (!$constraint->allowSquare && $width == $height) {
             $this->context->addViolation($constraint->allowSquareMessage, array(
                 '{{ width }}' => $width,
-                '{{ height }}' => $height
+                '{{ height }}' => $height,
             ));
         }
 
         if (!$constraint->allowLandscape && $width > $height) {
             $this->context->addViolation($constraint->allowLandscapeMessage, array(
                 '{{ width }}' => $width,
-                '{{ height }}' => $height
+                '{{ height }}' => $height,
             ));
         }
 
         if (!$constraint->allowPortrait && $width < $height) {
             $this->context->addViolation($constraint->allowPortraitMessage, array(
                 '{{ width }}' => $width,
-                '{{ height }}' => $height
+                '{{ height }}' => $height,
             ));
         }
 
diff --git a/src/Symfony/Component/Validator/Tests/Constraints/Fixtures/test_4by3.gif b/src/Symfony/Component/Validator/Tests/Constraints/Fixtures/test_4by3.gif
new file mode 100644
index 0000000000..64dd3ff96a
Binary files /dev/null and b/src/Symfony/Component/Validator/Tests/Constraints/Fixtures/test_4by3.gif differ
diff --git a/src/Symfony/Component/Validator/Tests/Constraints/ImageValidatorTest.php b/src/Symfony/Component/Validator/Tests/Constraints/ImageValidatorTest.php
index c01ba0a6be..6308669ea0 100644
--- a/src/Symfony/Component/Validator/Tests/Constraints/ImageValidatorTest.php
+++ b/src/Symfony/Component/Validator/Tests/Constraints/ImageValidatorTest.php
@@ -13,16 +13,21 @@ namespace Symfony\Component\Validator\Tests\Constraints;
 
 use Symfony\Component\Validator\Constraints\Image;
 use Symfony\Component\Validator\Constraints\ImageValidator;
-use Symfony\Component\Validator\Validation;
 
 class ImageValidatorTest extends AbstractConstraintValidatorTest
 {
     protected $context;
+
+    /**
+     * @var ImageValidator
+     */
     protected $validator;
+
     protected $path;
     protected $image;
     protected $imageLandscape;
     protected $imagePortrait;
+    protected $image4By3;
 
     protected function createValidator()
     {
@@ -36,6 +41,7 @@ class ImageValidatorTest extends AbstractConstraintValidatorTest
         $this->image = __DIR__.'/Fixtures/test.gif';
         $this->imageLandscape = __DIR__.'/Fixtures/test_landscape.gif';
         $this->imagePortrait = __DIR__.'/Fixtures/test_portrait.gif';
+        $this->image4By3 = __DIR__.'/Fixtures/test_4by3.gif';
     }
 
     public function testNullIsValid()
@@ -211,6 +217,17 @@ class ImageValidatorTest extends AbstractConstraintValidatorTest
         ));
     }
 
+    public function testMaxRatioUsesTwoDecimalsOnly()
+    {
+        $constraint = new Image(array(
+            'maxRatio' => 1.33,
+        ));
+
+        $this->validator->validate($this->image4By3, $constraint);
+
+        $this->assertNoViolation();
+    }
+
     /**
      * @expectedException \Symfony\Component\Validator\Exception\ConstraintDefinitionException
      */