X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fgui%2FOverviewCanvas.java;h=89088b8dc09a01a37f3bf9afd21ff9e71ac828ec;hb=bfb35471fbb8dd6cc4252b9a12b81057922e8f5e;hp=cc361a5010cbf3090c365b034b3a9f20e1b47017;hpb=77b160b053c41a5d5c95bf1bbc0fbd066435f70d;p=jalview.git

diff --git a/src/jalview/gui/OverviewCanvas.java b/src/jalview/gui/OverviewCanvas.java
index cc361a5..89088b8d 100644
--- a/src/jalview/gui/OverviewCanvas.java
+++ b/src/jalview/gui/OverviewCanvas.java
@@ -257,6 +257,7 @@ public class OverviewCanvas extends JComponent
   public void dispose()
   {
     dispose = true;
+    od = null;
     synchronized (this)
     {
       restart = true;