diff --git a/Library/Homebrew/cmd/update-report.rb b/Library/Homebrew/cmd/update-report.rb
index 9d4e8c6f001d6b5b1d41db7a2f9c8842ffe9c327..079bb3d7c36c592e3ed4102349b3ab1193fecb0f 100644
--- a/Library/Homebrew/cmd/update-report.rb
+++ b/Library/Homebrew/cmd/update-report.rb
@@ -466,7 +466,7 @@ class ReporterHub
       when :A
         name unless installed?(name)
       when :AC
-        name unless cask_installed?(name)
+        name.split("/").last unless cask_installed?(name)
       when :MC, :DC
         name = name.split("/").last
         cask_installed?(name) ? pretty_installed(name) : name