diff --git a/include/ui/sdl2.h b/include/ui/sdl2.h
index 71bcf7ebda..8fb7e08262 100644
--- a/include/ui/sdl2.h
+++ b/include/ui/sdl2.h
@@ -5,7 +5,18 @@
 #undef WIN32_LEAN_AND_MEAN
 
 #include <SDL.h>
+
+/* with Alpine / muslc SDL headers pull in directfb headers
+ * which in turn trigger warning about redundant decls for
+ * direct_waitqueue_deinit.
+ */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wredundant-decls"
+
 #include <SDL_syswm.h>
+
+#pragma GCC diagnostic pop
+
 #ifdef CONFIG_SDL_IMAGE
 # include <SDL_image.h>
 #endif