X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fgui%2FStructureChooser.java;h=9a5f87b47533c3a2ab18fb9877a8cef18a201753;hb=5713273d984e4de3b840ae7295ca8b151d8743cc;hp=266690eecee2ef9d49e5d5f92e3fc8d2fa0e40f4;hpb=8e2f91c6975f077f4313a516a46a5a42b6388b3a;p=jalview.git

diff --git a/src/jalview/gui/StructureChooser.java b/src/jalview/gui/StructureChooser.java
index 266690e..9a5f87b 100644
--- a/src/jalview/gui/StructureChooser.java
+++ b/src/jalview/gui/StructureChooser.java
@@ -279,6 +279,11 @@ public class StructureChooser extends GStructureChooser
       queryBuilder.append("text:").append(seqRef).append(" OR ");
     }
     int endIndex = queryBuilder.lastIndexOf(" OR ");
+
+    if (queryBuilder.toString().length() < 6)
+    {
+      return null;
+    }
     String query = queryBuilder.toString().substring(5, endIndex);
     return query;
   }