diff --git a/collects/teachpack/2htdp/scribblings/.gitignore b/collects/teachpack/2htdp/scribblings/.gitignore
deleted file mode 100644
index 8617481f53..0000000000
--- a/collects/teachpack/2htdp/scribblings/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-output.txt
diff --git a/collects/teachpack/2htdp/scribblings/batch-io.scrbl b/collects/teachpack/2htdp/scribblings/batch-io.scrbl
index 272e929fa1..11ecdda6b4 100644
--- a/collects/teachpack/2htdp/scribblings/batch-io.scrbl
+++ b/collects/teachpack/2htdp/scribblings/batch-io.scrbl
@@ -139,3 +139,5 @@ There is only one writer function at the moment:
 }
 ]
 
+@(delete-file "output.txt")
+