diff --git a/main.sx b/main.sx
index 15cbaf4..31fe903 100644
--- a/main.sx
+++ b/main.sx
@@ -7,7 +7,7 @@ stb :: #import "modules/stb.sx";
 WIDTH  :f32: 800;
 HEIGHT :f32: 600;
 
-main :: () {
+main :: () -> void {
     print("init video: \n");
     SDL_Init(SDL_INIT_VIDEO);