diff --git a/plugins/org.jkiss.dbeaver.ext.erd/src/org/jkiss/dbeaver/ext/erd/part/DiagramPart.java b/plugins/org.jkiss.dbeaver.ext.erd/src/org/jkiss/dbeaver/ext/erd/part/DiagramPart.java
index c9475d18343524abdcb5ac0a2844bb77da91721b..66f16cc7558d612e995fb83606276d9e72b55bac 100644
--- a/plugins/org.jkiss.dbeaver.ext.erd/src/org/jkiss/dbeaver/ext/erd/part/DiagramPart.java
+++ b/plugins/org.jkiss.dbeaver.ext.erd/src/org/jkiss/dbeaver/ext/erd/part/DiagramPart.java
@@ -46,7 +46,6 @@ import org.jkiss.dbeaver.ui.UIUtils;
 
 import java.beans.PropertyChangeEvent;
 import java.util.ArrayList;
-import java.util.Collection;
 import java.util.List;
 
 /**
@@ -369,7 +368,7 @@ public class DiagramPart extends PropertyAwarePart {
     @Override
     public String toString()
     {
-        return ERDMessages.entity_diagram_ + getDiagram().getName();
+        return ERDMessages.entity_diagram_ + " " + getDiagram().getName();
     }