diff --git a/Library/Homebrew/dev-cmd/bump-revision.rb b/Library/Homebrew/dev-cmd/bump-revision.rb
index 4141eb6469..4c2610a798 100644
--- a/Library/Homebrew/dev-cmd/bump-revision.rb
+++ b/Library/Homebrew/dev-cmd/bump-revision.rb
@@ -33,6 +33,7 @@ module Homebrew
     # user path, too.
     ENV["PATH"] = ENV["HOMEBREW_PATH"]
 
+    raise FormulaUnspecifiedError if ARGV.formulae.empty?
     raise "Multiple formulae given, only one is allowed." if ARGV.formulae.length > 1
 
     formula = ARGV.formulae.first