diff --git a/nix/modules/fish/default.nix b/nix/modules/fish/default.nix
index a92fd2d..0706823 100644
--- a/nix/modules/fish/default.nix
+++ b/nix/modules/fish/default.nix
@@ -74,6 +74,10 @@ let tide_conf = builtins.readFile ./tide_config.fish; in
           set --prepend fish_complete_path "$KITTY_INSTALLATION_DIR/shell-integration/fish/vendor_completions.d"
       end
 
+      if test -d $HOME/.cargo/
+        source "$HOME/.cargo/env.fish"
+      end
+
       ${builtins.readFile ./tide_config.fish}
       '';