diff --git a/Library/Homebrew/cmd/unpin.rb b/Library/Homebrew/cmd/unpin.rb
index 9e8db4d7d2..0738f58698 100644
--- a/Library/Homebrew/cmd/unpin.rb
+++ b/Library/Homebrew/cmd/unpin.rb
@@ -4,7 +4,7 @@ module Homebrew
   def unpin
     raise FormulaUnspecifiedError if ARGV.named.empty?
 
-    ARGV.formulae.each do |f|
+    ARGV.resolved_formulae.each do |f|
       if f.pinned?
         f.unpin
       elsif !f.pinnable?