diff --git a/src/main/java/de/thm/arsnova/security/ApplicationPermissionEvaluator.java b/src/main/java/de/thm/arsnova/security/ApplicationPermissionEvaluator.java
index 13ab5f6c949152710bd8d6f23d063f45a46cdf61..beb8741d0a72a577a9d6cad1f60b84c4453917f5 100644
--- a/src/main/java/de/thm/arsnova/security/ApplicationPermissionEvaluator.java
+++ b/src/main/java/de/thm/arsnova/security/ApplicationPermissionEvaluator.java
@@ -227,7 +227,7 @@ public class ApplicationPermissionEvaluator implements PermissionEvaluator {
 				}
 				room = roomRepository.findOne(targetMotd.getRoomId());
 
-				return room != null && !room.isClosed() || room.getOwnerId().equals(userId);
+				return room != null && (!room.isClosed() || room.getOwnerId().equals(userId));
 			default:
 				return false;
 		}