diff --git a/src/twn_util_c.h b/src/twn_util_c.h
index c963b2a..c867ea3 100644
--- a/src/twn_util_c.h
+++ b/src/twn_util_c.h
@@ -6,7 +6,7 @@
 #include <SDL2/SDL.h>
 
 #include <stdbool.h>
-
+#include <math.h>
 
 #define MAX SDL_max
 #define MIN SDL_min