1 files changed, 1 insertions, 1 deletions
diff --git a/test/fib.c b/test/fib.c
index 0c02171..806b416 100644
--- a/test/fib.c
+++ b/test/fib.c
@@ -1,6 +1,6 @@
 unsigned fib(unsigned x) {
    unsigned r = 0, q = 1;
-   while (x-- > 1) {
+   for (; x > 1; --x) {
       unsigned s = r + q;
       r = q;
       q = s;