1 files changed, 8 insertions, 8 deletions
diff --git a/lib/mattermost/session.rb b/lib/mattermost/session.rb
index 523d82f9161..9374c5c8f8f 100644
--- a/lib/mattermost/session.rb
+++ b/lib/mattermost/session.rb
@@ -1,13 +1,13 @@
 # frozen_string_literal: true
 
 module Mattermost
-  class NoSessionError < Mattermost::Error
+  class NoSessionError < ::Mattermost::Error
     def message
       'No session could be set up, is Mattermost configured with Single Sign On?'
     end
   end
 
-  ConnectionError = Class.new(Mattermost::Error)
+  ConnectionError = Class.new(::Mattermost::Error)
 
   # This class' prime objective is to obtain a session token on a Mattermost
   # instance with SSO configured where this GitLab instance is the provider.
@@ -42,7 +42,7 @@ module Mattermost
           yield self
         rescue Errno::ECONNREFUSED => e
           Gitlab::AppLogger.error(e.message + "\n" + e.backtrace.join("\n"))
-          raise Mattermost::NoSessionError
+          raise ::Mattermost::NoSessionError
         ensure
           destroy
         end
@@ -100,11 +100,11 @@ module Mattermost
     end
 
     def create
-      raise Mattermost::NoSessionError unless oauth_uri
-      raise Mattermost::NoSessionError unless token_uri
+      raise ::Mattermost::NoSessionError unless oauth_uri
+      raise ::Mattermost::NoSessionError unless token_uri
 
       @token = request_token
-      raise Mattermost::NoSessionError unless @token
+      raise ::Mattermost::NoSessionError unless @token
 
       @headers = {
         Authorization: "Bearer #{@token}"
@@ -174,9 +174,9 @@ module Mattermost
     def handle_exceptions
       yield
     rescue Gitlab::HTTP::Error => e
-      raise Mattermost::ConnectionError, e.message
+      raise ::Mattermost::ConnectionError, e.message
     rescue Errno::ECONNREFUSED => e
-      raise Mattermost::ConnectionError, e.message
+      raise ::Mattermost::ConnectionError, e.message
     end
 
     def parse_cookie(response)