diff --git a/share/completions/tox.fish b/share/completions/tox.fish
index a3f88e206..327bc540a 100644
--- a/share/completions/tox.fish
+++ b/share/completions/tox.fish
@@ -1,4 +1,4 @@
-function ___fish_toxenvs
+function __fish_toxenvs
     echo ALL
     tox --listenvs-all 2>/dev/null
 end