diff --git a/Library/Homebrew/dependencies.rb b/Library/Homebrew/dependencies.rb
index 06fa4b5d04..455b42e24c 100644
--- a/Library/Homebrew/dependencies.rb
+++ b/Library/Homebrew/dependencies.rb
@@ -71,7 +71,7 @@ class Dependency
   end
 
   def ==(other_dep)
-    @name = other_dep.to_s
+    @name == other_dep.to_s
   end
 
   def options