diff --git a/share/completions/ezjail-admin.fish b/share/completions/ezjail-admin.fish
index 287bce118..5eb0fc74c 100644
--- a/share/completions/ezjail-admin.fish
+++ b/share/completions/ezjail-admin.fish
@@ -3,11 +3,11 @@ function __fish_complete_jails
 end
 
 function __fish_complete_running_jails
-    ezjail-admin list | tail +3 | grep '^.R' | awk '{ print $4 }'
+    ezjail-admin list | tail +3 | string match -r '^.R' | awk '{ print $4 }'
 end
 
 function __fish_complete_stopped_jails
-    ezjail-admin list | tail +3 | grep '^.S' | awk '{ print $4 }'
+    ezjail-admin list | tail +3 | string match -r '^.S' | awk '{ print $4 }'
 end
 
 # archive