diff --git a/builtin/clean.c b/builtin/clean.c
index 3c4ca9a2ff698253cc03228689068fc2884673bd..fad533a0a7382f10ecf48a738c955734ad5c0d96 100644
--- a/builtin/clean.c
+++ b/builtin/clean.c
@@ -909,7 +909,7 @@ int cmd_clean(int argc, const char **argv, const char *prefix)
 	struct option options[] = {
 		OPT__QUIET(&quiet, N_("do not print names of files removed")),
 		OPT__DRY_RUN(&dry_run, N_("dry run")),
-		OPT__FORCE(&force, N_("force"), 0),
+		OPT__FORCE(&force, N_("force"), PARSE_OPT_NOCOMPLETE),
 		OPT_BOOL('i', "interactive", &interactive, N_("interactive cleaning")),
 		OPT_BOOL('d', NULL, &remove_directories,
 				N_("remove whole directories")),
diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 068def9f6ba6e13ab9afd714306dc7473aaf2506..b7de381876411b8906e60ae455f8e53bd9a56031 100644
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -1307,7 +1307,7 @@ _git_clean ()
 {
 	case "$cur" in
 	--*)
-		__gitcomp "--dry-run --quiet"
+		__gitcomp_builtin clean
 		return
 		;;
 	esac