diff --git a/Library/Homebrew/dependency_collector.rb b/Library/Homebrew/dependency_collector.rb
index 5fe3aef30e..2e955a5e2c 100644
--- a/Library/Homebrew/dependency_collector.rb
+++ b/Library/Homebrew/dependency_collector.rb
@@ -153,7 +153,7 @@ class DependencyCollector
     elsif strategy <= SubversionDownloadStrategy
       SubversionRequirement.new(tags)
     elsif strategy <= MercurialDownloadStrategy
-      Dependency.new("hg", tags)
+      Dependency.new("mercurial", tags)
     elsif strategy <= FossilDownloadStrategy
       Dependency.new("fossil", tags)
     elsif strategy <= BazaarDownloadStrategy