diff --git a/flake.nix b/flake.nix
index 8eefa58..b58f7a2 100644
--- a/flake.nix
+++ b/flake.nix
@@ -30,7 +30,7 @@
             inherit pkgs;
             additionalBuildInputs = [
               (pkgs.rust-bin.selectLatestNightlyWith (toolchain: toolchain.default.override {
-                extensions = [ "rust-src" ];
+                extensions = [ "rust-src" "rust-analyzer" ];
               }))
             ];
           };