diff --git a/libc/kernel/tools/generate_uapi_headers.sh b/libc/kernel/tools/generate_uapi_headers.sh
index 0a35100..61c78ce 100755
--- a/libc/kernel/tools/generate_uapi_headers.sh
+++ b/libc/kernel/tools/generate_uapi_headers.sh
@@ -196,7 +196,7 @@
   TMPDIR=$(mktemp -d /tmp/android_kernelXXXXXXXX)
   cd "${TMPDIR}"
   echo "Fetching android linux kernel source..."
-  git clone ${ANDROID_KERNEL_REPO} -b ${ANDROID_KERNEL_BRANCH}
+  git clone ${ANDROID_KERNEL_REPO} -b ${ANDROID_KERNEL_BRANCH} --depth=1
   cd common
   KERNEL_DIR="${TMPDIR}/common"
 elif [[ "${KERNEL_DIR}" == "" ]]; then