diff --git a/shell.nix b/shell.nix
index 63735c1..fc14d24 100644
--- a/shell.nix
+++ b/shell.nix
@@ -2,4 +2,5 @@
 
 pkgs.mkShell {
   buildInputs = with pkgs; [ rustc cargo rust-analyzer rustfmt pkg-config dbus ];
+  RUST_SRC_PATH = "${pkgs.rust.packages.stable.rustPlatform.rustcSrc}";
 }