diff --git a/azure-mgmt-resources/src/main/java/com/microsoft/azure/management/resources/implementation/DeploymentInner.java b/azure-mgmt-resources/src/main/java/com/microsoft/azure/management/resources/implementation/DeploymentInner.java
index <HASH>..<HASH> 100644
--- a/azure-mgmt-resources/src/main/java/com/microsoft/azure/management/resources/implementation/DeploymentInner.java
+++ b/azure-mgmt-resources/src/main/java/com/microsoft/azure/management/resources/implementation/DeploymentInner.java
@@ -18,7 +18,7 @@ public class DeploymentInner {
     /**
      * The deployment properties.
      */
-    @JsonProperty(value = "properties")
+    @JsonProperty(value = "properties", required = true)
     private DeploymentProperties properties;
 
     /**
Regenerated Resources (#<I>)