diff --git a/share/functions/__fish_complete_man.fish b/share/functions/__fish_complete_man.fish
index 7306dd2cb..bd9818bb9 100644
--- a/share/functions/__fish_complete_man.fish
+++ b/share/functions/__fish_complete_man.fish
@@ -6,7 +6,7 @@ function __fish_complete_man
 	set section ""
 	set prev (commandline -poc)
 	set -e prev[1]
-	while count $prev
+	while set -q prev[1]
 		switch $prev[1]
 			case '-**'