diff --git a/plugins/mezuro/lib/kalibro/entities/error.rb b/plugins/mezuro/lib/kalibro/entities/error.rb
index 3dcd05d..23b1316 100644
--- a/plugins/mezuro/lib/kalibro/entities/error.rb
+++ b/plugins/mezuro/lib/kalibro/entities/error.rb
@@ -1,6 +1,6 @@
 class Kalibro::Entities::Error < Kalibro::Entities::Entity
   
-  attr_accessor :error_class, :message, :stack_trace_element
+  attr_accessor :error_class, :message, :stack_trace_element, :cause
 
   def stack_trace_element=(value)
     @stack_trace_element = to_entity_array(value, Kalibro::Entities::StackTraceElement)
@@ -14,4 +14,8 @@ class Kalibro::Entities::Error < Kalibro::Entities::Entity
     @stack_trace_element = stack_trace
   end
 
-end
\ No newline at end of file
+  def cause=(cause_value)
+    @cause = to_entity(cause_value, Kalibro::Entities::Error)
+  end
+
+end
--
libgit2 0.21.2