diff --git a/gnu/packages/wm.scm b/gnu/packages/wm.scm
index e5b7ea800f..5d28cac38a 100644
--- a/gnu/packages/wm.scm
+++ b/gnu/packages/wm.scm
@@ -194,6 +194,8 @@ (define-public herbstluftwm
          (list "CC=gcc"
                (string-append "PREFIX=''")
                (string-append "DESTDIR=" out)
+               (string-append "FISHCOMPLETIONDIR="
+                              "/share/fish/vendor_completions.d")
                (string-append "BASHCOMPLETIONDIR=" out
                               "/etc/bash_completion.d")))))
     (synopsis "Tiling window manager for X11")