diff --git a/plugins/commands/plugin/action/list_plugins.rb b/plugins/commands/plugin/action/list_plugins.rb
index f5dd0574b..4abbcab99 100644
--- a/plugins/commands/plugin/action/list_plugins.rb
+++ b/plugins/commands/plugin/action/list_plugins.rb
@@ -1,4 +1,3 @@
-require "rubygems"
 require "set"
 
 module VagrantPlugins
@@ -23,18 +22,16 @@ module VagrantPlugins
           # Go through the plugins installed in this environment and
           # get the latest version of each.
           installed_map = {}
-          env[:gem_helper].with_environment do
-            Gem::Specification.find_all.each do |spec|
-              # Ignore specs that aren't in our installed list
-              next if !installed.include?(spec.name)
+          Bundler.load.specs.each do |spec|
+            # Ignore specs that aren't in our installed list
+            next if !installed.include?(spec.name)
 
-              # If we already have a newer version in our list of installed,
-              # then ignore it
-              next if installed_map.has_key?(spec.name) &&
-                installed_map[spec.name].version >= spec.version
+            # If we already have a newer version in our list of installed,
+            # then ignore it
+            next if installed_map.has_key?(spec.name) &&
+              installed_map[spec.name].version >= spec.version
 
-              installed_map[spec.name] = spec
-            end
+            installed_map[spec.name] = spec
           end
 
           # Output!