diff --git a/.circleci/unittest/linux/scripts/install.sh b/.circleci/unittest/linux/scripts/install.sh
index 50a02f11e3..2815a86d72 100755
--- a/.circleci/unittest/linux/scripts/install.sh
+++ b/.circleci/unittest/linux/scripts/install.sh
@@ -41,6 +41,7 @@ printf "Installing PyTorch with %s\n" "${cudatoolkit}"
 
 # 2. Install torchaudio
 printf "* Installing torchaudio\n"
+git submodule sync
 git submodule update --init --recursive
 BUILD_TRANSDUCER=1 BUILD_SOX=1 python setup.py install