diff --git a/pitfall/.gitignore b/pitfall/.gitignore
index 22347699..e25bb76c 100644
--- a/pitfall/.gitignore
+++ b/pitfall/.gitignore
@@ -20,3 +20,4 @@ xenomorph/scribblings/*.js
 xenomorph/scribblings/*.html
 pdfkit/
 ptest/test*rkt.pdf
+pitfall/data/*.rktd