diff --git a/gfx/context/x11_common.c b/gfx/context/x11_common.c
index 90d49b38ab..4720d356ce 100644
--- a/gfx/context/x11_common.c
+++ b/gfx/context/x11_common.c
@@ -100,8 +100,8 @@ void x11_move_window(Display *dpy, Window win, int x, int y,
 static void x11_set_window_class(Display *dpy, Window win)
 {
    XClassHint hint = {0};
-   hint.res_name = "retroarch";
-   hint.res_class = "retroarch";
+   hint.res_name   = (char*)"retroarch"; // Broken header.
+   hint.res_class  = (char*)"retroarch";
    XSetClassHint(dpy, win, &hint);
 }