diff --git a/lib/train.rb b/lib/train.rb
index 74a0a75c..50340c13 100644
--- a/lib/train.rb
+++ b/lib/train.rb
@@ -128,10 +128,10 @@ def self.parse_uri(string)
     # e.g. mock://. To do this, we match it manually and fake the hostname
     if u.scheme && (u.host.nil? || u.host.empty?) && u.path.empty?
       case string
-        when %r{^([a-z]+)://$}
-          string += "dummy"
-        when /^([a-z]+):$/
-          string += "//dummy"
+      when %r{^([a-z]+)://$}
+        string += "dummy"
+      when /^([a-z]+):$/
+        string += "//dummy"
       end
       u = Addressable::URI.parse(string)
       u.host = nil