diff --git a/gfx/display_servers/dispserv_x11.c b/gfx/display_servers/dispserv_x11.c
index 0118953243..4bf44396f0 100644
--- a/gfx/display_servers/dispserv_x11.c
+++ b/gfx/display_servers/dispserv_x11.c
@@ -24,6 +24,8 @@
 #include <unistd.h>
 #include <X11/Xlib.h>
 
+#include <string/stdstring.h>
+
 #ifdef HAVE_CONFIG_H
 #include "../../config.h"
 #endif