diff --git a/plugins/modules/azure_rm_manageddisk.py b/plugins/modules/azure_rm_manageddisk.py
index 4c6dfe1fc..ea99e0468 100644
--- a/plugins/modules/azure_rm_manageddisk.py
+++ b/plugins/modules/azure_rm_manageddisk.py
@@ -352,6 +352,17 @@ def exec_module(self, **kwargs):
             self.location = resource_group.location
 
         disk_instance = self.get_managed_disk()
+        if disk_instance is not None:
+            if self.create_option is None:
+                self.create_option = disk_instance.get('create_option')
+            if self.source_uri is None:
+                self.source_uri = disk_instance.get('source_uri')
+            if self.disk_size_gb is None:
+                self.disk_size_gb = disk_instance.get('disk_size_gb')
+            if self.os_type is None:
+                self.os_type = disk_instance.get('os_type')
+            if self.zone is None:
+                self.zone = disk_instance.get('zone')
         result = disk_instance
 
         # need create or update