diff --git a/Library/Homebrew/keg.rb b/Library/Homebrew/keg.rb
index 7c7defe7e0..f28c6da545 100644
--- a/Library/Homebrew/keg.rb
+++ b/Library/Homebrew/keg.rb
@@ -533,8 +533,6 @@ class Keg
 
   def codesign_patched_binary(file); end
 
-  def dsymutil_binary(file); end
-
   private
 
   def resolve_any_conflicts(dst, dry_run: false, verbose: false, overwrite: false)