Index: generic/nsfEnumerationType.c
===================================================================
diff -u -N -r843e576364a54a491861bad94df4cbf31f878ab3 -ra2021fcacd45bfbbe0d2dc11061e2a374c49726f
--- generic/nsfEnumerationType.c	(.../nsfEnumerationType.c)	(revision 843e576364a54a491861bad94df4cbf31f878ab3)
+++ generic/nsfEnumerationType.c	(.../nsfEnumerationType.c)	(revision a2021fcacd45bfbbe0d2dc11061e2a374c49726f)
@@ -94,7 +94,7 @@
 
   NsfMutexLock(&enumerationMutex);
 
-  if (enumerationTypeRefCount-- < 1) {
+  if (--enumerationTypeRefCount < 1) {
     Tcl_DeleteHashTable(enumerationHashTablePtr);
   }