diff --git a/libc/stdio/vfprintf.c b/libc/stdio/vfprintf.c
index 96c46db7a..e1f4d0035 100644
--- a/libc/stdio/vfprintf.c
+++ b/libc/stdio/vfprintf.c
@@ -227,12 +227,12 @@ vfprintf(FILE *op, const char *fmt, va_list ap)
             p = buf + sizeof(buf) - 1;
             *p = '\0';
             do {
-#if 1
-                c = radix;
-                v = __divmod(v, &c);    /* remainder returned in c */
-#else
+#if __WATCOMC__
                 c = v % radix;
                 v = v / radix;
+#else
+                c = radix;
+                v = __divmod(v, &c);    /* remainder returned in c */
 #endif
                 if (c > 9)
                     *--p = ((*fmt == 'X')? 'A': 'a') - 10 + c;