diff --git a/.github/workflows/scripts/build_protobuf.sh b/.github/workflows/scripts/build_protobuf.sh
index 5d1415921..b36c32806 100644
--- a/.github/workflows/scripts/build_protobuf.sh
+++ b/.github/workflows/scripts/build_protobuf.sh
@@ -1,7 +1,7 @@
 
 git clone https://github.com/protocolbuffers/protobuf.git
 cd protobuf
-git submoduleu update --init
+git submodule update --init
 git checkout v4.22.0
 mkdir build_source && cd build_source
 cmake ../cmake -DCMAKE_INSTALL_PREFIX=${PWD}/installed_protobuf_lib -Dprotobuf_BUILD_SHARED_LIBS=OFF -DCMAKE_POSITION_INDEPENDENT_CODE=ON -Dprotobuf_BUILD_TESTS=OFF -DCMAKE_BUILD_TYPE=Release