diff --git a/src/libui_sdl/main.cpp b/src/libui_sdl/main.cpp
index 75568a56..3b484be4 100644
--- a/src/libui_sdl/main.cpp
+++ b/src/libui_sdl/main.cpp
@@ -19,6 +19,7 @@
 #include <stdlib.h>
 #include <time.h>
 #include <stdio.h>
+#include <string.h>
 
 #include <SDL2/SDL.h>
 #include "libui/ui.h"