diff --git a/Library/Homebrew/gpg.rb b/Library/Homebrew/gpg.rb
index 3b7c4f726d..f56473df3f 100644
--- a/Library/Homebrew/gpg.rb
+++ b/Library/Homebrew/gpg.rb
@@ -38,6 +38,7 @@ class Gpg
       Key-Length: 2048
       Subkey-Type: RSA
       Subkey-Length: 2048
+      Passphrase: ''
       Name-Real: Testing
       Name-Email: testing@foo.bar
       Expire-Date: 1d