diff --git a/lib/grape_logging/middleware/request_logger.rb b/lib/grape_logging/middleware/request_logger.rb
index 7c279ae..c2736ec 100644
--- a/lib/grape_logging/middleware/request_logger.rb
+++ b/lib/grape_logging/middleware/request_logger.rb
@@ -1,3 +1,4 @@
+require 'benchmark'
 require 'grape/middleware/base'
 
 module GrapeLogging