diff --git a/pkgs/development/ruby-modules/bundler-update-script/default.nix b/pkgs/development/ruby-modules/bundler-update-script/default.nix
index 5d5ebfabce0e..648b246380e6 100644
--- a/pkgs/development/ruby-modules/bundler-update-script/default.nix
+++ b/pkgs/development/ruby-modules/bundler-update-script/default.nix
@@ -18,6 +18,7 @@ let
 
     cd "$gemdir"
 
+    export BUNDLE_FORCE_RUBY_PLATFORM=1
     bundler lock --update
     bundix
   '';