diff --git a/src/bin/tyfuzz.c b/src/bin/tyfuzz.c
index 5c0c317d..e933c1bb 100644
--- a/src/bin/tyfuzz.c
+++ b/src/bin/tyfuzz.c
@@ -49,6 +49,11 @@ termio_scroll(Evas_Object *obj EINA_UNUSED,
 {
 }
 
+void
+termio_font_size_set(Evas_Object *obj EINA_UNUSED,
+                     int size EINA_UNUSED)
+{
+}
 /* }}} */