diff --git a/eZ/Publish/Core/FieldType/Tests/StringLengthValidatorTest.php b/eZ/Publish/Core/FieldType/Tests/StringLengthValidatorTest.php
index e354c7f20c5..8cd64825364 100644
--- a/eZ/Publish/Core/FieldType/Tests/StringLengthValidatorTest.php
+++ b/eZ/Publish/Core/FieldType/Tests/StringLengthValidatorTest.php
@@ -213,14 +213,14 @@ public function providerForValidateKO()
         return array(
             array(
                 '',
-                'The string can not be shorter than %size% character.',
-                'The string can not be shorter than %size% characters.',
+                'The string cannot be shorter than %size% character.',
+                'The string cannot be shorter than %size% characters.',
                 array('%size%' => $this->getMinStringLength()),
             ),
             array(
                 'Hi!',
-                'The string can not be shorter than %size% character.',
-                'The string can not be shorter than %size% characters.',
+                'The string cannot be shorter than %size% character.',
+                'The string cannot be shorter than %size% characters.',
                 array('%size%' => $this->getMinStringLength()),
             ),
             array(
@@ -231,8 +231,8 @@ public function providerForValidateKO()
             ),
             array(
                 'ABC♔',
-                'The string can not be shorter than %size% character.',
-                'The string can not be shorter than %size% characters.',
+                'The string cannot be shorter than %size% character.',
+                'The string cannot be shorter than %size% characters.',
                 array('%size%' => $this->getMinStringLength()),
             ),
         );
diff --git a/eZ/Publish/Core/FieldType/Tests/TextLineTest.php b/eZ/Publish/Core/FieldType/Tests/TextLineTest.php
index 6b66c2c9ec9..f7bc95abede 100644
--- a/eZ/Publish/Core/FieldType/Tests/TextLineTest.php
+++ b/eZ/Publish/Core/FieldType/Tests/TextLineTest.php
@@ -636,8 +636,8 @@ public function provideInvalidDataForValidate()
                 new TextLineValue('aaa'),
                 array(
                     new ValidationError(
-                        'The string can not be shorter than %size% character.',
-                        'The string can not be shorter than %size% characters.',
+                        'The string cannot be shorter than %size% character.',
+                        'The string cannot be shorter than %size% characters.',
                         array(
                             '%size%' => 5,
                         ),
@@ -686,8 +686,8 @@ public function provideInvalidDataForValidate()
                         'text'
                     ),
                     new ValidationError(
-                        'The string can not be shorter than %size% character.',
-                        'The string can not be shorter than %size% characters.',
+                        'The string cannot be shorter than %size% character.',
+                        'The string cannot be shorter than %size% characters.',
                         array(
                             '%size%' => 10,
                         ),
@@ -707,8 +707,8 @@ public function provideInvalidDataForValidate()
                 new TextLineValue('ABC♔'),
                 array(
                     new ValidationError(
-                        'The string can not be shorter than %size% character.',
-                        'The string can not be shorter than %size% characters.',
+                        'The string cannot be shorter than %size% character.',
+                        'The string cannot be shorter than %size% characters.',
                         array(
                             '%size%' => 5,
                         ),
diff --git a/eZ/Publish/Core/FieldType/TextLine/Type.php b/eZ/Publish/Core/FieldType/TextLine/Type.php
index 79c4a2dfa74..3c5fe114cde 100644
--- a/eZ/Publish/Core/FieldType/TextLine/Type.php
+++ b/eZ/Publish/Core/FieldType/TextLine/Type.php
@@ -107,8 +107,8 @@ public function validate(FieldDefinition $fieldDefinition, SPIValue $fieldValue)
             $constraints['minStringLength'] !== 0 &&
             mb_strlen($fieldValue->text) < $constraints['minStringLength']) {
             $validationErrors[] = new ValidationError(
-                'The string can not be shorter than %size% character.',
-                'The string can not be shorter than %size% characters.',
+                'The string cannot be shorter than %size% character.',
+                'The string cannot be shorter than %size% characters.',
                 array(
                     '%size%' => $constraints['minStringLength'],
                 ),
diff --git a/eZ/Publish/Core/FieldType/Validator/StringLengthValidator.php b/eZ/Publish/Core/FieldType/Validator/StringLengthValidator.php
index 3cb6d5311f4..6042dc6b8ea 100644
--- a/eZ/Publish/Core/FieldType/Validator/StringLengthValidator.php
+++ b/eZ/Publish/Core/FieldType/Validator/StringLengthValidator.php
@@ -126,8 +126,8 @@ public function validate(BaseValue $value)
             $this->constraints['minStringLength'] !== 0 &&
             mb_strlen($value->text) < $this->constraints['minStringLength']) {
             $this->errors[] = new ValidationError(
-                'The string can not be shorter than %size% character.',
-                'The string can not be shorter than %size% characters.',
+                'The string cannot be shorter than %size% character.',
+                'The string cannot be shorter than %size% characters.',
                 array(
                     '%size%' => $this->constraints['minStringLength'],
                 )