diff --git a/reference/constraints/Choice.rst b/reference/constraints/Choice.rst
index f3cb36ff329..497e6fc3e87 100644
--- a/reference/constraints/Choice.rst
+++ b/reference/constraints/Choice.rst
@@ -92,7 +92,7 @@ If your valid choice list is simple, you can pass them in directly via the
             {
                 $metadata->addPropertyConstraint('gender', new Assert\Choice(array(
                     'choices' => array('male', 'female'),
-                    'message' => 'Choose a valid gender',
+                    'message' => 'Choose a valid gender.',
                 )));
             }
         }
diff --git a/reference/constraints/Max.rst b/reference/constraints/Max.rst
index 8317e972e26..4bb358117f8 100644
--- a/reference/constraints/Max.rst
+++ b/reference/constraints/Max.rst
@@ -72,7 +72,7 @@ add the following:
             {
                 $metadata->addPropertyConstraint('age', new Assert\Max(array(
                     'limit'   => 50,
-                    'message' => "You must be 50 or under to enter.",
+                    'message' => 'You must be 50 or under to enter.',
                 )));
             }
         }
diff --git a/reference/constraints/True.rst b/reference/constraints/True.rst
index 556997c0aa0..682f3c12a55 100644
--- a/reference/constraints/True.rst
+++ b/reference/constraints/True.rst
@@ -50,7 +50,7 @@ Then you can constrain this method with ``True``.
         Acme\BlogBundle\Entity\Author:
             getters:
                 tokenValid:
-                    - "True": { message: "The token is invalid" }
+                    - "True": { message: "The token is invalid." }
 
     .. code-block:: php-annotations
 
@@ -78,7 +78,7 @@ Then you can constrain this method with ``True``.
         <class name="Acme\BlogBundle\Entity\Author">
             <getter property="tokenValid">
                 <constraint name="True">
-                    <option name="message">The token is invalid...</option>
+                    <option name="message">The token is invalid.</option>
                 </constraint>
             </getter>
         </class>
@@ -98,7 +98,7 @@ Then you can constrain this method with ``True``.
             public static function loadValidatorMetadata(ClassMetadata $metadata)
             {
                 $metadata->addGetterConstraint('tokenValid', new True(array(
-                    'message' => 'The token is invalid',
+                    'message' => 'The token is invalid.',
                 )));
             }