diff --git a/functions/_tide_parent_dirs.fish b/functions/_tide_parent_dirs.fish
index 9f31b043..3763423b 100644
--- a/functions/_tide_parent_dirs.fish
+++ b/functions/_tide_parent_dirs.fish
@@ -1,7 +1,11 @@
 function _tide_parent_dirs --on-variable PWD
-    set -g _tide_parent_dirs (string escape (
-        for dir in (string split / -- $PWD)
-            set -la parts $dir
-            string join / -- $parts
-        end))
+    set -g _tide_parent_dirs (
+        string escape (
+            for dir in (string split / -- $PWD)
+                if test (string length \"$dir\") -lt 1
+                    continue
+                end
+                set -a parts $dir
+               string join "" (string join / --  $parts) ""
+            end))
 end