diff --git a/packages/kbn-repo-packages/modern/get_git_repo_root.js b/packages/kbn-repo-packages/modern/get_git_repo_root.js
index b365b6b8870c9..344bf0e74296f 100644
--- a/packages/kbn-repo-packages/modern/get_git_repo_root.js
+++ b/packages/kbn-repo-packages/modern/get_git_repo_root.js
@@ -26,6 +26,7 @@ function getGitRepoRootSync(repoRoot) {
       cwd: repoRoot,
       encoding: 'utf8',
       maxBuffer: Infinity,
+      stdio: 'pipe',
     });
 
     const firstLine = stdout.split('\n')[0];