X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fgui%2FOverviewCanvas.java;h=ca27a9cfb77322252f0630735638ea289b7a096c;hb=7a5cac232c59bba9964ec32ecdd787b8028cde48;hp=042f9374f584c1a88fab7869a7050b8a9aba1942;hpb=90f198f9988ef8a98d46b95e21b22a8fcea541d8;p=jalview.git

diff --git a/src/jalview/gui/OverviewCanvas.java b/src/jalview/gui/OverviewCanvas.java
index 042f937..ca27a9c 100644
--- a/src/jalview/gui/OverviewCanvas.java
+++ b/src/jalview/gui/OverviewCanvas.java
@@ -259,6 +259,7 @@ public class OverviewCanvas extends JPanel
   public void dispose()
   {
     dispose = true;
+    od = null;
     synchronized (this)
     {
       restart = true;