diff --git a/build/debian/kokoro/gcp_ubuntu_docker/build.sh b/build/debian/kokoro/gcp_ubuntu_docker/build.sh
index c5745d0..88ce921 100644
--- a/build/debian/kokoro/gcp_ubuntu_docker/build.sh
+++ b/build/debian/kokoro/gcp_ubuntu_docker/build.sh
@@ -10,4 +10,4 @@
 python --version
 
 sudo losetup -D
-sudo -E ./build.sh
+sudo ./build.sh