diff --git a/plugins/com.minres.scviewer.ui/src/com/minres/scviewer/ui/TxEditorPart.java b/plugins/com.minres.scviewer.ui/src/com/minres/scviewer/ui/TxEditorPart.java
index 24518bb..a7dbfb8 100644
--- a/plugins/com.minres.scviewer.ui/src/com/minres/scviewer/ui/TxEditorPart.java
+++ b/plugins/com.minres.scviewer.ui/src/com/minres/scviewer/ui/TxEditorPart.java
@@ -56,7 +56,7 @@ import com.minres.scviewer.ui.views.TxOutlinePage;
 
 public class TxEditorPart extends EditorPart implements ITabbedPropertySheetPageContributor {
 
-	private IWaveformDbFactory waveformDbFactory;
+	private static IWaveformDbFactory waveformDbFactory;
 	
 	public synchronized void bind(IWaveformDbFactory factory){
 		waveformDbFactory=factory;