diff --git a/Library/Homebrew/reinstall.rb b/Library/Homebrew/reinstall.rb
index 4d5ff2485c..3fedef937c 100644
--- a/Library/Homebrew/reinstall.rb
+++ b/Library/Homebrew/reinstall.rb
@@ -84,7 +84,7 @@ module Homebrew
       keg = install_context.keg
       formula = install_context.formula
       options = install_context.options
-      link_keg = keg.linked?
+      link_keg = keg.linked? if keg&.linked? || nil
       formula_installer.prelude
       formula_installer.fetch