diff --git a/Library/Homebrew/formula_installer.rb b/Library/Homebrew/formula_installer.rb
index c46e20b2be..3fceb01b81 100644
--- a/Library/Homebrew/formula_installer.rb
+++ b/Library/Homebrew/formula_installer.rb
@@ -64,7 +64,7 @@ class FormulaInstaller
       raise rberr(dep) unless quiet_system "/usr/bin/env", "ruby", "-rubygems", "-e", "require '#{dep}'"
     end
     f.external_deps[:jruby].each do |dep|
-      raise rberr(dep) unless quiet_system "/usr/bin/env", "jruby", "-rubygems", "-e", "require '#{dep}'"
+      raise jrberr(dep) unless quiet_system "/usr/bin/env", "jruby", "-rubygems", "-e", "require '#{dep}'"
     end
   end