diff --git a/lib/hooks.rb b/lib/hooks.rb
index 2cef375..f0ef1e1 100644
--- a/lib/hooks.rb
+++ b/lib/hooks.rb
@@ -23,7 +23,7 @@ def self.included(base)
       extend Uber::InheritableAttr
       extend ClassMethods
       inheritable_attr :_hooks
-      self._hooks= HookSet.new
+      self._hooks ||= HookSet.new
     end
   end
 
@@ -133,4 +133,4 @@ def clone
   end
 end
 
-require "hooks/instance_hooks"
\ No newline at end of file
+require "hooks/instance_hooks"