diff --git a/src/backend/sdl.c b/src/backend/sdl.c
index 1a0b8a1..4c59a60 100644
--- a/src/backend/sdl.c
+++ b/src/backend/sdl.c
@@ -79,7 +79,6 @@ bool ax__backend_is_shutdown(struct ax_backend* bac)
 void ax__backend_wait_for_event(struct ax_backend* bac)
 {
     (void) bac;
-    printf("ping.\n");
     usleep(1000 * 1000);
 }