diff --git a/modules/raylib.cppm b/modules/raylib.cppm
index 0d8e662a..af98d59b 100644
--- a/modules/raylib.cppm
+++ b/modules/raylib.cppm
@@ -5,6 +5,8 @@
 
 module;
 
+#include <cstdlib>
+
 #define BUILD_RAYLIB_CPP_MODULES
 #define RLCPPAPI
 #define RAYMATH_IMPLEMENTATION