diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index adc91bdd1d6..27449024f43 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -654,7 +654,8 @@ let
     inherit fetchurl stdenv cdrkit m4;
   };
 
-  ecj = import ../development/compilers/ecj {
+  # FIXME: Remove/merge with `ecj'.
+  ecjNew = import ../development/compilers/ecj {
     inherit fetchurl stdenv unzip ant;
   };