diff --git a/app/models/backtrace_line.rb b/app/models/backtrace_line.rb
index f59c4e1..d515ecf 100644
--- a/app/models/backtrace_line.rb
+++ b/app/models/backtrace_line.rb
@@ -1,7 +1,7 @@
 class BacktraceLine
   include Mongoid::Document
 
-  field :number, type: Integer
+  field :number, :type => Integer
   field :file
   field :method
 
--
libgit2 0.21.2