diff --git a/libs/sdl_engine/src/GLUtil.h b/libs/sdl_engine/src/GLUtil.h
index 70d6bb8..59ce7b1 100644
--- a/libs/sdl_engine/src/GLUtil.h
+++ b/libs/sdl_engine/src/GLUtil.h
@@ -6,6 +6,7 @@
 
 #include <array>
 #include <cassert>
+#include <cstdio>
 #include <functional>
 #include <optional>