diff --git a/contrib/completion/bash/docker b/contrib/completion/bash/docker
index 1ff570abf2..4e0314431e 100644
--- a/contrib/completion/bash/docker
+++ b/contrib/completion/bash/docker
@@ -1121,7 +1121,7 @@ _docker_container_ls() {
 
 	case "$prev" in
 		--filter|-f)
-			COMPREPLY=( $( compgen -S = -W "ancestor before exited health id label name network since status volume" -- "$cur" ) )
+			COMPREPLY=( $( compgen -S = -W "ancestor before exited health id is-task label name network since status volume" -- "$cur" ) )
 			__docker_nospace
 			return
 			;;