diff --git a/Library/Homebrew/cmd/gist-logs.rb b/Library/Homebrew/cmd/gist-logs.rb
index e606014b5c..7193c4b024 100644
--- a/Library/Homebrew/cmd/gist-logs.rb
+++ b/Library/Homebrew/cmd/gist-logs.rb
@@ -15,6 +15,7 @@
 #:    If no logs are found, an error message is presented.
 
 require "formula"
+require "install"
 require "system_config"
 require "stringio"
 require "socket"