diff --git a/Library/Homebrew/resource.rb b/Library/Homebrew/resource.rb
index f9409f7604..238d55ddfd 100644
--- a/Library/Homebrew/resource.rb
+++ b/Library/Homebrew/resource.rb
@@ -73,7 +73,7 @@ class Resource
   def verify_download_integrity fn
     fn.verify_checksum(checksum)
   rescue ChecksumMissingError
-    opoo "Cannot verify download integrity"
+    opoo "Cannot verify integrity of #{fn.basename}"
     puts "A checksum was not provided for this resource"
     puts "For your reference the SHA1 is: #{fn.sha1}"
   rescue ChecksumMismatchError => e