diff --git a/src/EditTableDialog.ui b/src/EditTableDialog.ui
index 8e0a43ca..e960a533 100644
--- a/src/EditTableDialog.ui
+++ b/src/EditTableDialog.ui
@@ -243,7 +243,7 @@
             </column>
             <column>
              <property name="text">
-              <string>Not null</string>
+              <string>NN</string>
              </property>
              <property name="toolTip">
               <string>Not null</string>