diff --git a/sowm.c b/sowm.c
index f3e83a7..31fcbd0 100644
--- a/sowm.c
+++ b/sowm.c
@@ -387,7 +387,7 @@ void wm_init() {
         if (events[ev.type]) events[ev.type](&ev);
 }
 
-int main() {
+int main(void) {
     if ((dis = XOpenDisplay(0))) wm_init();
 
     return 0;