X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fschemes%2FRNAHelicesColour.java;h=7cbca667404d9b80ed4a88fcad9791ccfe49e12f;hb=2f4f1d8fb6878271b64f327bc58c895f458137af;hp=1a0359330989f53ac262b362d60a73435c24c143;hpb=4cf0508ac56ebb01fbd51b547ea9f4a682ca97fb;p=jalview.git

diff --git a/src/jalview/schemes/RNAHelicesColour.java b/src/jalview/schemes/RNAHelicesColour.java
index 1a03593..7cbca66 100644
--- a/src/jalview/schemes/RNAHelicesColour.java
+++ b/src/jalview/schemes/RNAHelicesColour.java
@@ -67,7 +67,8 @@ public class RNAHelicesColour extends ResidueColourScheme
 
   public void refresh()
   {
-    if (lastrefresh != annotation._rnasecstr.hashCode()
+    if ((annotation._rnasecstr == null
+    		|| lastrefresh != annotation._rnasecstr.hashCode())
             && annotation.isValidStruc())
     {
       annotation.getRNAStruc();