diff --git a/pkgs/development/interpreters/ruby/dev.nix b/pkgs/development/interpreters/ruby/dev.nix
index 7787306eb32..62d561fbc14 100644
--- a/pkgs/development/interpreters/ruby/dev.nix
+++ b/pkgs/development/interpreters/ruby/dev.nix
@@ -8,7 +8,6 @@ let
     ruby = ruby;
   };
   bundix_ = bundix.override {
-    ruby = ruby;
     bundler = bundler_;
   };
 in