diff --git a/images/bromite-build/pre-start.sh b/images/bromite-build/pre-start.sh
index c50293a..bbf7e79 100644
--- a/images/bromite-build/pre-start.sh
+++ b/images/bromite-build/pre-start.sh
@@ -27,7 +27,7 @@ sudo cp $WORKSPACE/goma_auth.py $WORKSPACE/goma/
 echo -e ${RED} -------- prepare vpython virtual environment ${NC}
 rm -rf /tmp/vpython*
 cd $WORKSPACE/chromium/src
-vpython -vpython-spec .vpython -vpython-root $VPYTHON_VIRTUALENV_ROOT -vpython-log-level debug -vpython-tool install
+vpython -vpython-spec .vpython3 -vpython-root $VPYTHON_VIRTUALENV_ROOT -vpython-log-level debug -vpython-tool install
 
 echo -e ${RED} -------- download x86_64 android image ${NC}
 echo -e "\$ParanoidMode CheckIntegrity\n\nchromium/third_party/android_sdk/public/avds/android-31/google_apis/x86_64 Ur_zl6_BRKRkf_9X3SMZ3eH2auoOyJ2kLslpTZZwi3gC" | .cipd_client ensure -ensure-file - -root $WORKSPACE/chromium/src/.android