1 files changed, 1 insertions, 1 deletions
diff --git a/Src/utils.c b/Src/utils.c
index d3319f0a9..4992680fe 100644
--- a/Src/utils.c
+++ b/Src/utils.c
@@ -1834,7 +1834,7 @@ zstrtol(const char *s, char **t, int base)
 	    base = 8;
     }
     inp = s;
-    if (base > 36) {
+    if (base < 2 || base > 36) {
 	zerr("invalid base: %d", base);
 	return (zlong)0;
     } else if (base <= 10)