diff --git a/src/SIM/SIMbase.C b/src/SIM/SIMbase.C
index 70dc4e2b..c6fc733d 100644
--- a/src/SIM/SIMbase.C
+++ b/src/SIM/SIMbase.C
@@ -102,6 +102,7 @@ void SIMbase::clearProperties ()
     delete i4->second;
 
   myPatches.clear();
+  myGlb2Loc.clear();
   myScalars.clear();
   myVectors.clear();
   myTracs.clear();