diff --git a/lib/Doctrine/ORM/UnitOfWork.php b/lib/Doctrine/ORM/UnitOfWork.php
index 96570971c..c74329581 100644
--- a/lib/Doctrine/ORM/UnitOfWork.php
+++ b/lib/Doctrine/ORM/UnitOfWork.php
@@ -1430,7 +1430,7 @@ class UnitOfWork implements PropertyChangedListener
         }
 
         switch (true) {
-            case ($class->isIdentifierNatural());
+            case ($class->isIdentifierNatural()):
                 // Check for a version field, if available, to avoid a db lookup.
                 if ($class->isVersioned) {
                     return ($class->getFieldValue($entity, $class->versionField))
@@ -2323,7 +2323,7 @@ class UnitOfWork implements PropertyChangedListener
         $class = $this->em->getClassMetadata(get_class($entity));
 
         switch (true) {
-            case LockMode::OPTIMISTIC === $lockMode;
+            case LockMode::OPTIMISTIC === $lockMode:
                 if ( ! $class->isVersioned) {
                     throw OptimisticLockException::notVersioned($class->name);
                 }