diff --git a/Library/Homebrew/requirements.rb b/Library/Homebrew/requirements.rb
index 96c3b5cbd2..84c2ba6d1c 100644
--- a/Library/Homebrew/requirements.rb
+++ b/Library/Homebrew/requirements.rb
@@ -243,7 +243,7 @@ class MysqlInstalled < Requirement
   end
 end
 
-class PostgresInstalled < Requirement
+class PostgresqlInstalled < Requirement
   def fatal?; true; end
 
   def satisfied?