diff --git a/pkgs/applications/networking/browsers/firefox/common.nix b/pkgs/applications/networking/browsers/firefox/common.nix
index 70d811c73ee1..4a9b4ec0d059 100644
--- a/pkgs/applications/networking/browsers/firefox/common.nix
+++ b/pkgs/applications/networking/browsers/firefox/common.nix
@@ -98,6 +98,7 @@ in
 
   # Darwin
   apple-sdk_14,
+  apple-sdk_15,
   cups,
   rsync, # used when preparing .app directory
 
@@ -582,7 +583,7 @@ buildStdenv.mkDerivation {
       zip
     ]
     ++ lib.optionals stdenv.hostPlatform.isDarwin [
-      apple-sdk_14
+      (if lib.versionAtLeast version "138" then apple-sdk_15 else apple-sdk_14)
       cups
     ]
     ++ (lib.optionals (!stdenv.hostPlatform.isDarwin) (