1 files changed, 1 insertions, 1 deletions
diff --git a/compat/strtol.c b/compat/strtol.c
index b7f6919..811006a 100644
--- a/compat/strtol.c
+++ b/compat/strtol.c
@@ -53,7 +53,7 @@ strtol(
      */
 
     p = string;
-    while (TclIsSpaceProc(*p)) {
+    while (isspace(UCHAR(*p))) {
 	p += 1;
     }