diff --git a/pkgs/shells/fish/default.nix b/pkgs/shells/fish/default.nix
index 0124f914866..353647f15b3 100644
--- a/pkgs/shells/fish/default.nix
+++ b/pkgs/shells/fish/default.nix
@@ -87,4 +87,8 @@ stdenv.mkDerivation rec {
     platforms = platforms.unix;
     maintainers = with maintainers; [ ocharles ];
   };
+
+  passthru = {
+    shellPath = "/bin/fish";
+  };
 }