diff --git a/pkgs/applications/editors/emacs/macport.nix b/pkgs/applications/editors/emacs/macport.nix
index 33c5da8642c..7c21c1cae5e 100644
--- a/pkgs/applications/editors/emacs/macport.nix
+++ b/pkgs/applications/editors/emacs/macport.nix
@@ -68,7 +68,7 @@ stdenv.mkDerivation rec {
     "--enable-mac-app=$$out/Applications"
   ];
 
-  CFLAGS = "-O3 -DMAC_OS_X_VERSION_MAX_ALLOWED=MAC_OS_X_VERSION_10_10 -DMAC_OS_X_VERSION_MIN_REQUIRED=MAC_OS_X_VERSION_10_10";
+  CFLAGS = "-O3";
   LDFLAGS = "-O3 -L${ncurses.out}/lib";
 
   postInstall = ''