diff --git a/tools/profile b/tools/profile
index 665efe049d..fbea67492b 100755
--- a/tools/profile
+++ b/tools/profile
@@ -4,7 +4,6 @@
 ENV['NO_RELOAD'] ||= '1'
 ENV['RAILS_ENV'] ||= 'development'
 
-Gem.source_index
 require 'benchmark'
 
 module RequireProfiler