1 files changed, 1 insertions, 0 deletions
diff --git a/src/groupdef.cpp b/src/groupdef.cpp
index aaf4d1b..7d7ea6c 100644
--- a/src/groupdef.cpp
+++ b/src/groupdef.cpp
@@ -753,6 +753,7 @@ void GroupDef::writeMemberGroups(OutputList &ol)
   /* write user defined member groups */
   if (memberGroupSDict)
   {
+    memberGroupSDict->sort();
     /* write user defined member groups */
     MemberGroupSDict::Iterator mgli(*memberGroupSDict);
     MemberGroup *mg;