diff --git a/Resources/config/validation.yml b/Resources/config/validation.yml
index c80bae183..80011e783 100644
--- a/Resources/config/validation.yml
+++ b/Resources/config/validation.yml
@@ -1,9 +1,9 @@
 Chill\PersonBundle\Entity\Person:
     properties:
         firstName:
-              - NotBlank: 
+              - NotBlank:
                   groups: [general, creation]
-              - Length: 
+              - Length:
                   min: 2
                   max: 255
                   minMessage: 'This name is too short. It must containt {{ limit }} chars'
@@ -12,17 +12,17 @@ Chill\PersonBundle\Entity\Person:
         lastName:
               - NotBlank:
                   groups: [general, creation]
-              - Length: 
+              - Length:
                   min: 2
                   max: 255
                   minMessage: 'This name is too short. It must containt {{ limit }} chars'
                   maxMessage: 'This name is too long. It must containt {{ limit }} chars'
                   groups: [general, creation]
         birthdate:
-              - Date: 
+              - Date:
                   message: 'Birthdate not valid'
                   groups: [general, creation]
-              - Chill\PersonBundle\Validator\Constraints\Birthdate: 
+              - Chill\PersonBundle\Validator\Constraints\Birthdate:
                   groups: [general, creation]
         gender:
                - NotNull:
@@ -32,21 +32,21 @@ Chill\PersonBundle\Entity\Person:
                   traverse: true
     constraints:
           - Callback:
-              methods: [isAccompanyingPeriodValid]
-              groups: [accompanying_period_consistent]
+                  callback: isAccompanyingPeriodValid
+                  groups: [accompanying_period_consistent]
           - Callback:
-              methods: [isAddressesValid]
-              groups: [addresses_consistent]
+                  callback: isAddressesValid
+                  groups: [addresses_consistent]
 
 Chill\PersonBundle\Entity\AccompanyingPeriod:
     properties:
         openingDate:
-              - Date: 
+              - Date:
                   message: 'Opening date is not valid'
-              - NotNull: 
+              - NotNull:
                   message: 'Opening date can not be null'
         closingDate:
-              - Date: 
+              - Date:
                   message: 'Closing date is not valid'
               - NotNull:
                   message: 'Closing date can not be null'