diff --git a/rust.nix b/rust.nix
index 7c74f15..f895a5a 100644
--- a/rust.nix
+++ b/rust.nix
@@ -33,7 +33,7 @@ in
         })
       (builtins.fetchurl
         {
-          url = "https://github.com/esp-rs/rust-build/releases/download/v${version}.0/rust-src-${version}.tar.xz";
+          url = "https://github.com/esp-rs/rust-build/releases/download/v${version}/rust-src-${version}.tar.xz";
           sha256 = "0w7fy0biml8ddvwpmrn9js4x6vkqjhm118gxy2431fnxl97v947f";
         })
     ];