diff --git a/package.json b/package.json
index 6c7f0ab0e..9fb845161 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@nevermined-io/sdk",
-  "version": "3.0.18-rc2",
+  "version": "3.0.18-rc3",
   "description": "Javascript SDK for connecting with Nevermined Data Platform ",
   "main": "./dist/node/sdk.js",
   "typings": "./dist/node/sdk.d.ts",
diff --git a/src/nevermined/api/RegistryBaseApi.ts b/src/nevermined/api/RegistryBaseApi.ts
index 045ea1a95..6084a1492 100644
--- a/src/nevermined/api/RegistryBaseApi.ts
+++ b/src/nevermined/api/RegistryBaseApi.ts
@@ -404,7 +404,10 @@ export abstract class RegistryBaseApi extends Instantiable {
         )
         metadataService.attributes.encryptedFiles = JSON.parse(encryptedFilesResponse)['hash']
 
-        if (metadataService.attributes.main.type === 'service') {
+        if (
+          metadataService.attributes.main.type === 'service' &&
+          metadataService.attributes.main.webService.internalAttributes
+        ) {
           const encryptedServiceAttributesResponse = await this.nevermined.services.node.encrypt(
             ddo.id,
             JSON.stringify(metadataService.attributes.main.webService.internalAttributes),