diff --git a/src/main.c b/src/main.c
index ebadd21..dd8262f 100644
--- a/src/main.c
+++ b/src/main.c
@@ -6,6 +6,7 @@
 #include "player.h"
 #include "render.h"
 #include "config.h"
+#include "collision.h"
 
 int main(void)
 {