1 files changed, 4 insertions, 4 deletions
diff --git a/lib/mattermost/client.rb b/lib/mattermost/client.rb
index 7fb959a149c..a5c1f788c68 100644
--- a/lib/mattermost/client.rb
+++ b/lib/mattermost/client.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 module Mattermost
-  ClientError = Class.new(Mattermost::Error)
+  ClientError = Class.new(::Mattermost::Error)
 
   class Client
     attr_reader :user
@@ -11,7 +11,7 @@ module Mattermost
     end
 
     def with_session(&blk)
-      Mattermost::Session.new(user).with_session(&blk)
+      ::Mattermost::Session.new(user).with_session(&blk)
     end
 
     private
@@ -52,12 +52,12 @@ module Mattermost
       json_response = Gitlab::Json.parse(response.body, legacy_mode: true)
 
       unless response.success?
-        raise Mattermost::ClientError, json_response['message'] || 'Undefined error'
+        raise ::Mattermost::ClientError, json_response['message'] || 'Undefined error'
       end
 
       json_response
     rescue JSON::JSONError
-      raise Mattermost::ClientError, 'Cannot parse response'
+      raise ::Mattermost::ClientError, 'Cannot parse response'
     end
   end
 end