diff --git a/share/functions/__fish_print_filesystems.fish b/share/functions/__fish_print_filesystems.fish
index 8dbadc7f4..ab6c4c767 100644
--- a/share/functions/__fish_print_filesystems.fish
+++ b/share/functions/__fish_print_filesystems.fish
@@ -5,5 +5,6 @@ function __fish_print_filesystems -d "Print a list of all known filesystem types
     set fs $fs reiserfs romfs smbfs sysv tmpfs udf ufs umsdos vfat xenix xfs xiafs
     # Mount has helper binaries to mount filesystems
     # These are called mount.* and are placed somewhere in $PATH
-    printf "%s\n" $fs (string replace -ra ".*/mount." "" -- $PATH/mount.*)
+    set -l mountfs $PATH/mount.*
+    printf '%s\n' $fs (string replace -ra '.*/mount.' '' -- $mountfs)
 end