diff --git a/lib/jekyll/plugin_manager.rb b/lib/jekyll/plugin_manager.rb
index b48969fe..a89908c6 100644
--- a/lib/jekyll/plugin_manager.rb
+++ b/lib/jekyll/plugin_manager.rb
@@ -38,7 +38,7 @@ module Jekyll
       else
         require "bundler"
         Bundler.setup # puts all groups on the load path
-        Bundler.require(:jekyll_plugins) # requires the gems in this group only
+        required_gems = Bundler.require(:jekyll_plugins) # requires the gems in this group only
         Jekyll.logger.debug("PluginManager:", "Required #{required_gems.map(&:name).join(', ')}")
         ENV["JEKYLL_NO_BUNDLER_REQUIRE"] = "true"
         true