Fixed iOS and Android build
diff --git a/src/render/opengles/SDL_render_gles.c b/src/render/opengles/SDL_render_gles.c
index 2f32614..387acf3 100644
--- a/src/render/opengles/SDL_render_gles.c
+++ b/src/render/opengles/SDL_render_gles.c
@@ -22,6 +22,7 @@
#if SDL_VIDEO_RENDER_OGL_ES && !SDL_RENDER_DISABLED
+#include "SDL_assert.h"
#include "SDL_hints.h"
#include "SDL_opengles.h"
#include "../SDL_sysrender.h"