diff --git a/src/main/java/de/thm/arsnova/services/RoomServiceImpl.java b/src/main/java/de/thm/arsnova/services/RoomServiceImpl.java
index 1f610087d445e420a3a7d8fce7d9f5837547d985..4c5155fc019eed19510dad2917c4c4eda504201f 100644
--- a/src/main/java/de/thm/arsnova/services/RoomServiceImpl.java
+++ b/src/main/java/de/thm/arsnova/services/RoomServiceImpl.java
@@ -324,7 +324,11 @@ public class RoomServiceImpl extends DefaultEntityServiceImpl<Room> implements R
 
 	@Override
 	public boolean isShortIdAvailable(final String shortId) {
-		return getByShortId(shortId) == null;
+		try {
+			return getByShortId(shortId) == null;
+		} catch (final NotFoundException e) {
+			return true;
+		}
 	}
 
 	@Override