diff --git a/completions/.gitignore b/completions/.gitignore
index 6f71b67d958..e406c3be21d 100644
--- a/completions/.gitignore
+++ b/completions/.gitignore
@@ -59,6 +59,7 @@
 /conjure
 /_constellation
 /_consul
+/_cosign
 /cowthink
 /_crc
 /createdb
diff --git a/completions/Makefile.am b/completions/Makefile.am
index 966f9c71c15..1c7117394d5 100644
--- a/completions/Makefile.am
+++ b/completions/Makefile.am
@@ -596,6 +596,7 @@ CLEANFILES = \
 	conjure \
 	_constellation \
 	_consul \
+	_cosign \
 	cowthink \
 	_crc \
 	createdb \
@@ -1035,6 +1036,7 @@ symlinks: $(DATA)
 		_cilium \
 		_cloudquery \
 		_constellation \
+		_cosign \
 		_crc \
 		_datree \
 		_dlv \