diff --git a/pkgs/development/tools/azure-static-sites-client/default.nix b/pkgs/development/tools/azure-static-sites-client/default.nix
index 08e56de7335b..452976b7282a 100644
--- a/pkgs/development/tools/azure-static-sites-client/default.nix
+++ b/pkgs/development/tools/azure-static-sites-client/default.nix
@@ -21,7 +21,7 @@ let
   };
   sources = {
     "x86_64-linux" = fetchBinary "linux-x64";
-    "x86_64-darwin" = fetchBinary "macOS";
+    "x86_64-darwin" = fetchBinary "osx-x64";
   };
 in
 stdenv.mkDerivation {