diff --git a/script/test.js b/script/test.js
index c4e7b6660..ea74432f4 100755
--- a/script/test.js
+++ b/script/test.js
@@ -244,9 +244,8 @@ function runCoreMainProcessTests(callback) {
     testPath
   ];
 
-  if (process.env.CI && process.platform === 'linux') {
-    testArguments.push('--no-sandbox');
-  }
+  testArguments.push('--in-process-gpu');
+  testArguments.push('--no-sandbox');
 
   const testEnv = Object.assign({}, prepareEnv('core-main-process'), {
     ATOM_GITHUB_INLINE_GIT_EXEC: 'true'