diff --git a/contrib/cryptsetup b/contrib/cryptsetup
index e37fcb48..03ec2a3c 100644
--- a/contrib/cryptsetup
+++ b/contrib/cryptsetup
@@ -2,7 +2,7 @@
 
 _cryptsetup_name()
 {
-    COMPREPLY=( $( compgen -W '$(command ls /dev/mapper | grep -v control)' \
+    COMPREPLY=( $( compgen -X control -W '$( command ls /dev/mapper )' \
         -- "$cur" ) )
 }