diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 12b4980e9d9..ed918476d62 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -2743,10 +2743,12 @@ let
     inherit getConfig;
   };
 
-  ecj = import ../development/eclipse/ecj {
+  ecj = makeOverridable (import ../development/eclipse/ecj) {
     inherit fetchurl stdenv unzip ant gcj;
   };
 
+  ecjDarwin = ecj.override { gcj = openjdkDarwin; ant = antDarwin; };
+
   jdtsdk = import ../development/eclipse/jdt-sdk {
     inherit fetchurl stdenv unzip;
   };