diff --git a/src/Plugin/Validation/Constraint/UserEmotionConstraintValidator.php b/src/Plugin/Validation/Constraint/UserEmotionConstraintValidator.php
index f70ee7a..32f2d41 100644
--- a/src/Plugin/Validation/Constraint/UserEmotionConstraintValidator.php
+++ b/src/Plugin/Validation/Constraint/UserEmotionConstraintValidator.php
@@ -61,7 +61,7 @@ class UserEmotionConstraintValidator extends ConstraintValidator implements Cont
             $likelihood = array('UNLIKELY', 'VERY_UNLIKELY');
             // If the image is not a happy one.
             if (in_array($joy, $likelihood)) {
-              drupal_set_message($constraint->message, 'warning');
+              $this->context->addViolation($constraint->message);
             }
           }
         }