diff --git a/RO-plugin/osm_ro_plugin/vimconn.py b/RO-plugin/osm_ro_plugin/vimconn.py
index 66fe190..d0162cc 100644
--- a/RO-plugin/osm_ro_plugin/vimconn.py
+++ b/RO-plugin/osm_ro_plugin/vimconn.py
@@ -300,32 +300,13 @@
         userdata = None
         userdata_list = []
 
-        # For more information, check https://cloudinit.readthedocs.io/en/latest/reference/merging.html
-        # Basically, with this, we don't override the provider's cloud config
-        merge_how = yaml.safe_dump(
-            {
-                "merge_how": [
-                    {
-                        "name": "list",
-                        "settings": ["append", "recurse_dict", "recurse_list"],
-                    },
-                    {
-                        "name": "dict",
-                        "settings": ["no_replace", "recurse_list", "recurse_dict"],
-                    },
-                ]
-            },
-            indent=4,
-            default_flow_style=False,
-        )
-
         if isinstance(cloud_config, dict):
             if cloud_config.get("user-data"):
                 if isinstance(cloud_config["user-data"], str):
-                    userdata_list.append(cloud_config["user-data"] + f"\n{merge_how}")
+                    userdata_list.append(cloud_config["user-data"])
                 else:
                     for u in cloud_config["user-data"]:
-                        userdata_list.append(u + f"\n{merge_how}")
+                        userdata_list.append(u)
 
             if cloud_config.get("boot-data-drive") is not None:
                 config_drive = cloud_config["boot-data-drive"]
@@ -340,12 +321,12 @@
                 # default user
                 if cloud_config.get("key-pairs"):
                     userdata_dict["ssh-authorized-keys"] = cloud_config["key-pairs"]
-                    userdata_dict["system_info"] = {
-                        "default_user": {
-                            "ssh_authorized_keys": cloud_config["key-pairs"],
+                    userdata_dict["users"] = [
+                        {
+                            "default": None,
+                            "ssh-authorized-keys": cloud_config["key-pairs"],
                         }
-                    }
-                    userdata_dict["users"] = ["default"]
+                    ]
 
                 if cloud_config.get("users"):
                     if "users" not in userdata_dict:
@@ -384,7 +365,6 @@
                 userdata_list.append(
                     "#cloud-config\n"
                     + yaml.safe_dump(userdata_dict, indent=4, default_flow_style=False)
-                    + f"\n{merge_how}"
                 )
             userdata = self._create_mimemultipart(userdata_list)
             self.logger.debug("userdata: %s", userdata)