diff --git a/apps/vr-tests-react-components/screener.config.js b/apps/vr-tests-react-components/screener.config.js
index 5908be77592792..d7a07eafdbcee4 100644
--- a/apps/vr-tests-react-components/screener.config.js
+++ b/apps/vr-tests-react-components/screener.config.js
@@ -27,9 +27,7 @@ function getCurrentHash() {
   return '';
 }
 
-const baseBranch = process.env.SYSTEM_PULLREQUEST_TARGETBRANCH
-  ? process.env.SYSTEM_PULLREQUEST_TARGETBRANCH.replace(/^refs\/heads\//, '')
-  : 'master';
+const baseBranch = process.env.SYSTEM_PULLREQUEST_TARGETBRANCH;
 
 // https://github.com/screener-io/screener-storybook#additional-configuration-options
 const config = {
@@ -41,9 +39,7 @@ const config = {
   baseBranch,
   failureExitCode: 0,
   alwaysAcceptBaseBranch: true,
-  ...(process.env.BUILD_SOURCEBRANCH && process.env.BUILD_SOURCEBRANCH.indexOf('refs/pull') > -1
-    ? { commit: getCurrentHash() }
-    : null),
+  ...(process.env.BUILD_SOURCEBRANCHNAME === 'merge' ? { commit: getCurrentHash() } : null),
   baseUrl: `${process.env.DEPLOYURL}/react-components-screener/iframe.html`,
 };
 console.log('Screener config: ' + JSON.stringify({ ...config, apiKey: '...' }, null, 2));
diff --git a/apps/vr-tests/screener.config.js b/apps/vr-tests/screener.config.js
index e09461d0f3bfb3..8f5a357642ee69 100644
--- a/apps/vr-tests/screener.config.js
+++ b/apps/vr-tests/screener.config.js
@@ -27,9 +27,7 @@ function getCurrentHash() {
   return '';
 }
 
-const baseBranch = process.env.SYSTEM_PULLREQUEST_TARGETBRANCH
-  ? process.env.SYSTEM_PULLREQUEST_TARGETBRANCH.replace(/^refs\/heads\//, '')
-  : 'master';
+const baseBranch = process.env.SYSTEM_PULLREQUEST_TARGETBRANCH;
 
 // https://github.com/screener-io/screener-storybook#additional-configuration-options
 const config = {
@@ -41,9 +39,7 @@ const config = {
   baseBranch,
   failureExitCode: 0,
   alwaysAcceptBaseBranch: true,
-  ...(process.env.BUILD_SOURCEBRANCH && process.env.BUILD_SOURCEBRANCH.indexOf('refs/pull') > -1
-    ? { commit: getCurrentHash() }
-    : null),
+  ...(process.env.BUILD_SOURCEBRANCHNAME === 'merge' ? { commit: getCurrentHash() } : null),
   baseUrl: `${process.env.DEPLOYURL}/react-screener/iframe.html`,
 };
 console.log('Screener config: ' + JSON.stringify({ ...config, apiKey: '...' }, null, 2));
diff --git a/scripts/gulp/tasks/screener.ts b/scripts/gulp/tasks/screener.ts
index 08f45429a46710..60635483369f03 100644
--- a/scripts/gulp/tasks/screener.ts
+++ b/scripts/gulp/tasks/screener.ts
@@ -38,7 +38,7 @@ task('screener:runner', cb => {
 
   const screenerConfig = require(screenerConfigPath);
   let affectedPackages = new Set<string>();
-  const isPrBuild = process.env.BUILD_SOURCEBRANCH && process.env.BUILD_SOURCEBRANCH.includes('refs/pull');
+  const isPrBuild = process.env.BUILD_SOURCEBRANCHNAME === 'merge';
 
   if (isPrBuild) {
     affectedPackages = getAffectedPackages();
diff --git a/scripts/screener/screener.config.js b/scripts/screener/screener.config.js
index 599016792c851b..541c74c085950b 100644
--- a/scripts/screener/screener.config.js
+++ b/scripts/screener/screener.config.js
@@ -32,7 +32,7 @@ require('tsconfig-paths').register({
 });
 
 const baseBranch = 'master';
-const sourceBranch = process.env.BUILD_SOURCEBRANCH;
+const sourceBranchName = process.env.BUILD_SOURCEBRANCHNAME;
 
 // https://github.com/screener-io/screener-runner
 module.exports = {
@@ -56,8 +56,7 @@ module.exports = {
   alwaysAcceptBaseBranch: true,
   baseBranch,
   failureExitCode: 0,
-
-  ...(sourceBranch && sourceBranch.indexOf('refs/pull') > -1
+  ...(sourceBranchName === 'merge'
     ? {
         commit: getCurrentHash(),
       }
diff --git a/scripts/screener/screener.runner.ts b/scripts/screener/screener.runner.ts
index 945e3c081a91d9..b06e8ede2d71dc 100644
--- a/scripts/screener/screener.runner.ts
+++ b/scripts/screener/screener.runner.ts
@@ -97,10 +97,6 @@ export async function screenerRunner(screenerConfig: ScreenerRunnerConfig) {
   const commit = process.env.SYSTEM_PULLREQUEST_SOURCECOMMITID;
   // https://github.com/screener-io/screener-runner/blob/2a8291fb1b0219c96c8428ea6644678b0763a1a1/src/ci.js#L101
   let branchName = process.env.SYSTEM_PULLREQUEST_SOURCEBRANCH || process.env.BUILD_SOURCEBRANCHNAME;
-  // remove prefix if exists
-  if (branchName.indexOf('refs/heads/') === 0) {
-    branchName = branchName.replace('refs/heads/', '');
-  }
 
   const checkUrl = await scheduleScreenerBuild(screenerConfig, {
     build: process.env.BUILD_BUILDID,
diff --git a/scripts/tasks/screener.ts b/scripts/tasks/screener.ts
index 1404f8fabd60fb..4c2407a6a1c02e 100644
--- a/scripts/tasks/screener.ts
+++ b/scripts/tasks/screener.ts
@@ -21,7 +21,7 @@ export async function screener() {
   const packagePath = path.relative(findGitRoot(), process.cwd());
   const affectedPackageInfo = Object.values(packageInfos).find(x => x.packagePath === packagePath);
   let affectedPackages = new Set<string>();
-  const isPrBuild = process.env.BUILD_SOURCEBRANCH && process.env.BUILD_SOURCEBRANCH.includes('refs/pull');
+  const isPrBuild = process.env.BUILD_SOURCEBRANCHNAME === 'merge';
 
   if (isPrBuild) {
     affectedPackages = getAffectedPackages();