diff --git a/src/corelib/render.c b/src/corelib/render.c
index d1a3144..3be0081 100644
--- a/src/corelib/render.c
+++ b/src/corelib/render.c
@@ -9,6 +9,7 @@
 #include "SDL2/SDL_render.h"
 #include "SDL2/SDL_surface.h"
 #include "SDL2/SDL_ttf.h"
+#include <stddef.h>
 
 #define NUM_DRAWCMDS 2048
 
@@ -337,7 +338,7 @@ static void _insert_drawcmd_at(size_t index, const drawcmd_t* cmd) {
 			memmove(dest, insertpoint, count*sizeof(drawcmd_t));
 		}
 	}
-	memcpy(insertpoint, cmd, sizeof(drawcmd_t));
+	*insertpoint = *cmd;
 	insertpoint->ui = _render_mode == 1;
 }