diff --git a/src/main/java/org/caosdb/server/transaction/WriteTransaction.java b/src/main/java/org/caosdb/server/transaction/WriteTransaction.java
index 916e0cec02f6ce60783360e969255f120c9c1589..3497f912c33a69716a701f6f0d15af732d63870f 100644
--- a/src/main/java/org/caosdb/server/transaction/WriteTransaction.java
+++ b/src/main/java/org/caosdb/server/transaction/WriteTransaction.java
@@ -420,7 +420,7 @@ public class WriteTransaction extends Transaction<WritableContainer>
       try {
         newEntity.parseValue();
         oldEntity.parseValue();
-      } catch (NullPointerException|Message m) {
+      } catch (NullPointerException | Message m) {
         // ignore, parsing is handled elsewhere
       }
       if (!newEntity.getValue().equals(oldEntity.getValue())) {