diff --git a/examples/filesystem/main.c b/examples/filesystem/main.c
index b496a66ecd..f3a99559b6 100644
--- a/examples/filesystem/main.c
+++ b/examples/filesystem/main.c
@@ -199,6 +199,7 @@ static int _cat(int argc, char **argv)
     }
     close(fd);
 #endif
+    fflush(stdout);
     return 0;
 }