diff --git a/plugins/org.jkiss.dbeaver.ui/src/org/jkiss/dbeaver/ui/controls/CustomComboBoxCellEditor.java b/plugins/org.jkiss.dbeaver.ui/src/org/jkiss/dbeaver/ui/controls/CustomComboBoxCellEditor.java
index 19cbc3750ca890fec069dde7d28b5cac59306551..901efee09f45ca65caa1828a13c6e77cf4e2ad4d 100644
--- a/plugins/org.jkiss.dbeaver.ui/src/org/jkiss/dbeaver/ui/controls/CustomComboBoxCellEditor.java
+++ b/plugins/org.jkiss.dbeaver.ui/src/org/jkiss/dbeaver/ui/controls/CustomComboBoxCellEditor.java
@@ -123,6 +123,11 @@ public class CustomComboBoxCellEditor extends ComboBoxCellEditor {
         return 0;
     }
 
+    @Override
+    protected boolean dependsOnExternalFocusListener() {
+        return false;
+    }
+
     @Override
     protected void focusLost() {
         Control newFocus = getControl().getDisplay().getFocusControl();