diff --git a/src/twn_loop.c b/src/twn_loop.c
index 83960a0..62d7da0 100644
--- a/src/twn_loop.c
+++ b/src/twn_loop.c
@@ -222,6 +222,7 @@ static void main_loop(void) {
             CRY_SDL("Error queueing audio: ");
         #endif
 
+        /* TODO: ctx.game_copy = ctx.game should be placed after it, but it messes with state used in render() */
         preserve_persistent_ctx_fields();
 
         ctx.frame_accumulator -= ctx.desired_frametime;