diff --git a/pitfall/.gitignore b/pitfall/.gitignore
index e25bb76c..f8b79ea4 100644
--- a/pitfall/.gitignore
+++ b/pitfall/.gitignore
@@ -21,3 +21,4 @@ xenomorph/scribblings/*.html
 pdfkit/
 ptest/test*rkt.pdf
 pitfall/data/*.rktd
+ptest/out.bin