diff --git a/util/bas_string.c b/util/bas_string.c
index 30618b4..c3333d3 100644
--- a/util/bas_string.c
+++ b/util/bas_string.c
@@ -59,8 +59,7 @@ void *memset(void *s, int c, size_t n)
     do
     {
         *dst++ = c;
-        n--;
-    } while (n);
+    } while (n--);
 
     return s;
 }