Index: generic/nsf.c
===================================================================
diff -u -r5425e020380d24f7e9d082ddc030478b93e894d2 -r33d063a3296efd044652cba8668e25cef4797b66
--- generic/nsf.c	(.../nsf.c)	(revision 5425e020380d24f7e9d082ddc030478b93e894d2)
+++ generic/nsf.c	(.../nsf.c)	(revision 33d063a3296efd044652cba8668e25cef4797b66)
@@ -26351,7 +26351,7 @@
   length = strlen(methodName);
 
   for (j = 0; j < length; j++) {
-    if (methodName[j] == ':' || methodName[j] == ' ') {
+    if (methodName[j] == ':' || NsfHasTclSpace(&methodName[j])) {
       break;
     }
   }