diff --git a/src/.cvsignore b/src/.cvsignore
index f693a5edb4eb8e42a4ac2f92136df5455fddbd59..32cab698119919ec481f90751b4c8419dfb219d8 100644
--- a/src/.cvsignore
+++ b/src/.cvsignore
@@ -17,3 +17,4 @@ pike
 stamp-h
 stamp-h.in
 testsuite
+y.output
diff --git a/src/.gitignore b/src/.gitignore
index 51c6f0f67c8e2dcd4a76d4f2aeeaf38726821332..83823ab72b61ee31f78ac54779ad036ab3e6f4ca 100644
--- a/src/.gitignore
+++ b/src/.gitignore
@@ -17,3 +17,4 @@
 /stamp-h
 /stamp-h.in
 /testsuite
+/y.output