diff --git a/packages/extension-base/src/utils/fetchStaticData.ts b/packages/extension-base/src/utils/fetchStaticData.ts
index 3ef20de61e..cf03d713c8 100644
--- a/packages/extension-base/src/utils/fetchStaticData.ts
+++ b/packages/extension-base/src/utils/fetchStaticData.ts
@@ -3,8 +3,9 @@
 
 import axios from 'axios';
 
+const PRODUCTION_BRANCHES = ['master', 'webapp', 'webapp-dev'];
 const branchName = process.env.BRANCH_NAME || 'koni-dev';
-const fetchTarget = (branchName === 'master' || branchName === 'webapp') ? 'list.json' : 'preview.json';
+const fetchTarget = PRODUCTION_BRANCHES.indexOf(branchName) > -1 ? 'list.json' : 'preview.json';
 
 export async function fetchStaticData<T> (slug: string, targetFile?: string) {
   const fetchFile = targetFile || fetchTarget;