diff --git a/omaha_request_action.cc b/omaha_request_action.cc
index 927c7d3..9d53a4e 100644
--- a/omaha_request_action.cc
+++ b/omaha_request_action.cc
@@ -289,6 +289,8 @@
   output_object.needs_admin =
       XmlGetProperty(updatecheck_node, "needsadmin") == "true";
   output_object.prompt = XmlGetProperty(updatecheck_node, "Prompt") == "true";
+  output_object.is_delta =
+      XmlGetProperty(updatecheck_node, "IsDelta") == "true";
   SetOutputObject(output_object);
   return;
 }