diff --git a/.clusterfuzzlite/Dockerfile b/.clusterfuzzlite/Dockerfile
index 1061003e..ecda1f66 100644
--- a/.clusterfuzzlite/Dockerfile
+++ b/.clusterfuzzlite/Dockerfile
@@ -8,7 +8,8 @@ FROM gcr.io/oss-fuzz-base/base-builder:v1
 
 RUN apt-get update && apt-get install -y \
 	build-essential ninja-build cmake make \
-	libreadline-dev libunwind-dev zlib1g-dev
+	libreadline-dev libunwind-dev zlib1g-dev \
+	protobuf-compiler libprotobuf-dev
 
 COPY . $SRC/lua-c-api-tests
 WORKDIR $SRC/lua-c-api-tests
diff --git a/.clusterfuzzlite/build.sh b/.clusterfuzzlite/build.sh
index a9e930bb..8be75585 100755
--- a/.clusterfuzzlite/build.sh
+++ b/.clusterfuzzlite/build.sh
@@ -29,6 +29,7 @@ esac
 cmake_args=(
     -DUSE_LUAJIT=ON
     -DOSS_FUZZ=ON
+    -DENABLE_BUILD_PROTOBUF=OFF
     $SANITIZERS_ARGS
 
     # C compiler