diff --git a/tools/internal_ci/linux/grpc_android.sh b/tools/internal_ci/linux/grpc_android.sh
index 209b30d1ad7..d335e783947 100755
--- a/tools/internal_ci/linux/grpc_android.sh
+++ b/tools/internal_ci/linux/grpc_android.sh
@@ -15,6 +15,10 @@
 
 set -ex
 
+# Install packages which werer not preinstalled yet.
+# Protobuf needs autoconf & automake to build
+sudo apt-get install -y autoconf automake 
+
 # change to grpc repo root
 cd $(dirname $0)/../../..