diff --git a/c.c b/c.c
index 7cfe76d7..36465c8f 100644
--- a/c.c
+++ b/c.c
@@ -1,6 +1,6 @@
 #include<stdio.h>
 
-int main() {
+int main(void) {
 	printf("Hello World\n");
 	return 0;
 }