diff --git a/lib/overcommit/hook/pre_rebase/base.rb b/lib/overcommit/hook/pre_rebase/base.rb
index 91500f04..49ac6511 100644
--- a/lib/overcommit/hook/pre_rebase/base.rb
+++ b/lib/overcommit/hook/pre_rebase/base.rb
@@ -6,6 +6,7 @@ class Base < Overcommit::Hook::Base
     extend Forwardable
 
     def_delegators :@context,
-                   :upstream_branch, :rebased_branch, :fast_forward?, :rebased_commits
+                   :upstream_branch, :rebased_branch, :detached_head?,
+                   :fast_forward?, :rebased_commits
   end
 end