diff --git a/src/rendering/twn_text.c b/src/rendering/twn_text.c
index 6d8b2ef..e5bfe5f 100644
--- a/src/rendering/twn_text.c
+++ b/src/rendering/twn_text.c
@@ -289,6 +289,11 @@ void text_cache_reset_arena(TextCache *cache) {
 
 
 void draw_text(const char *string, Vec2 position, float height, Color color, const char *font) {
+    if (!font) {
+        log_warn("Default font isn't yet implemented");
+        return;
+    }
+
     ensure_font_cache(font, (int)height);
 
     /* the original string might not be around by the time it's used, so copy it */