diff --git a/adapters/database_cleaner-mongoid/lib/database_cleaner/mongoid/mongo1_truncation_mixin.rb b/adapters/database_cleaner-mongoid/lib/database_cleaner/mongoid/mongo1_truncation_mixin.rb
new file mode 100644
index 0000000..fd29d9c
--- /dev/null
+++ b/adapters/database_cleaner-mongoid/lib/database_cleaner/mongoid/mongo1_truncation_mixin.rb
@@ -0,0 +1,26 @@
+module DatabaseCleaner
+  module Mongoid
+    module Mongo1TruncationMixin
+      def clean
+        if @only
+          collections.each { |c| c.send(truncate_method_name) if @only.include?(c.name) }
+        else
+          collections.each { |c| c.send(truncate_method_name) unless @tables_to_exclude.include?(c.name) }
+        end
+        true
+      end
+
+      private
+
+      def collections
+        database.collections.select { |c| c.name !~ /^system\./ }
+      end
+
+      def truncate_method_name
+        # This constant only exists in the 2.x series.
+        defined?(::Mongo::VERSION) ? :delete_many : :remove
+      end
+    end
+  end
+end
+
diff --git a/adapters/database_cleaner-mongoid/lib/database_cleaner/mongo2/truncation_mixin.rb b/adapters/database_cleaner-mongoid/lib/database_cleaner/mongoid/mongo2_truncation_mixin.rb
similarity index 94%
rename from adapters/database_cleaner-mongoid/lib/database_cleaner/mongo2/truncation_mixin.rb
rename to adapters/database_cleaner-mongoid/lib/database_cleaner/mongoid/mongo2_truncation_mixin.rb
index f26a169..459ed3d 100644
--- a/adapters/database_cleaner-mongoid/lib/database_cleaner/mongo2/truncation_mixin.rb
+++ b/adapters/database_cleaner-mongoid/lib/database_cleaner/mongoid/mongo2_truncation_mixin.rb
@@ -1,7 +1,6 @@
 module DatabaseCleaner
-  module Mongo2
-    module TruncationMixin
-
+  module Mongoid
+    module Mongo2TruncationMixin
       def clean
         if @only
           collections.each { |c| database[c].find.delete_many if @only.include?(c) }
@@ -33,7 +32,7 @@ module DatabaseCleaner
         #   name
         # end
       end
-
     end
   end
 end
+
diff --git a/adapters/database_cleaner-mongoid/lib/database_cleaner/mongoid/mongoid_truncation_mixin.rb b/adapters/database_cleaner-mongoid/lib/database_cleaner/mongoid/mongoid_truncation_mixin.rb
new file mode 100644
index 0000000..3e1e164
--- /dev/null
+++ b/adapters/database_cleaner-mongoid/lib/database_cleaner/mongoid/mongoid_truncation_mixin.rb
@@ -0,0 +1,65 @@
+require 'database_cleaner/generic/base'
+require 'database_cleaner/generic/truncation'
+
+module DatabaseCleaner
+  module Mongoid
+    module MongoidTruncationMixin
+      include ::DatabaseCleaner::Generic::Base
+      include ::DatabaseCleaner::Generic::Truncation
+
+      def db=(desired_db)
+        @db = desired_db
+      end
+
+      def db
+        @db ||= :default
+      end
+
+      def host_port=(desired_host)
+        @host = desired_host
+      end
+
+      def host
+        @host ||= '127.0.0.1:27017'
+      end
+
+      def db_version
+        @db_version ||= session.command('buildinfo' => 1)['version']
+      end
+
+      def clean
+        if @only
+          collections.each { |c| session[c].find.remove_all if @only.include?(c) }
+        else
+          collections.each { |c| session[c].find.remove_all unless @tables_to_exclude.include?(c) }
+        end
+        wait_for_removals_to_finish
+        true
+      end
+
+      private
+
+      def collections
+        if db != :default
+          session.use(db)
+        end
+
+        if db_version.split('.').first.to_i >= 3
+          session.command(listCollections: 1, filter: { 'name' => { '$not' => /.?system\.|\$/ } })['cursor']['firstBatch'].map do |collection|
+            collection['name']
+          end
+        else
+          session['system.namespaces'].find(name: { '$not' => /\.system\.|\$/ }).to_a.map do |collection|
+            _, name = collection['name'].split('.', 2)
+            name
+          end
+        end
+      end
+
+      def wait_for_removals_to_finish
+        session.command(getlasterror: 1)
+      end
+    end
+  end
+end
+
diff --git a/adapters/database_cleaner-mongoid/lib/database_cleaner/mongoid/truncation.rb b/adapters/database_cleaner-mongoid/lib/database_cleaner/mongoid/truncation.rb
index 6a6debb..0131930 100644
--- a/adapters/database_cleaner-mongoid/lib/database_cleaner/mongoid/truncation.rb
+++ b/adapters/database_cleaner-mongoid/lib/database_cleaner/mongoid/truncation.rb
@@ -1,8 +1,8 @@
 require 'database_cleaner/mongoid/base'
 require 'database_cleaner/generic/truncation'
-require 'database_cleaner/mongo/truncation_mixin'
-require 'database_cleaner/mongo2/truncation_mixin'
-require 'database_cleaner/moped/truncation_base'
+require 'database_cleaner/mongoid/mongo1_truncation_mixin'
+require 'database_cleaner/mongoid/mongo2_truncation_mixin'
+require 'database_cleaner/mongoid/mongoid_truncation_mixin'
 require 'mongoid/version'
 
 module DatabaseCleaner
@@ -13,7 +13,7 @@ module DatabaseCleaner
 
       if ::Mongoid::VERSION < '3'
 
-        include ::DatabaseCleaner::Mongo::TruncationMixin
+        include ::DatabaseCleaner::Mongoid::Mongo1TruncationMixin
 
         private
 
@@ -23,7 +23,7 @@ module DatabaseCleaner
 
       elsif ::Mongoid::VERSION < '5'
 
-        include ::DatabaseCleaner::Moped::TruncationBase
+        include ::DatabaseCleaner::Mongoid::MongoidTruncationMixin
 
         private
 
@@ -41,7 +41,7 @@ module DatabaseCleaner
 
       else
 
-        include ::DatabaseCleaner::Mongo2::TruncationMixin
+        include ::DatabaseCleaner::Mongoid::Mongo2TruncationMixin
 
       end
     end