diff --git a/lib/Serverless.js b/lib/Serverless.js
index af40aced0..4e06d7d30 100644
--- a/lib/Serverless.js
+++ b/lib/Serverless.js
@@ -66,7 +66,7 @@ class Serverless {
    * Validate Project
    * Ensures:
    * - valid SERVERLESS project found
-   * - proj serverless.json has one valid region and stage
+   * - proj s-project.json has one valid region and stage
    */
 
   validateProject() {
diff --git a/lib/utils/index.js b/lib/utils/index.js
index 5894b3258..c9f05b985 100644
--- a/lib/utils/index.js
+++ b/lib/utils/index.js
@@ -609,7 +609,7 @@ exports.saveRegionalApi = function(projectJawsJson, regionName, restApiId, rootP
     }
   }
 
-  fs.writeFileSync(path.join(rootPath, 'serverless.json'), JSON.stringify(projectJawsJson, null, 2));
+  fs.writeFileSync(path.join(rootPath, 's-project.json'), JSON.stringify(projectJawsJson, null, 2));
 };
 
 function pathToContext(path) {