diff --git a/kern/libkern/stdio.c b/kern/libkern/stdio.c
index 61b740a..c50a0d6 100644
--- a/kern/libkern/stdio.c
+++ b/kern/libkern/stdio.c
@@ -22,7 +22,7 @@ static int stdout_puts(char *s, int len, void *unused) {
 int kprintf(const char *restrict fmt, ...) {
     va_list ap;
     va_start(ap, fmt);
-    int ret = kvprintf(fmt, &ap);
+    int ret = kvprintf(fmt, ap);
     va_end(ap);
     return ret;
 }