diff --git a/ci/install_rust.sh b/ci/install_rust.sh
index 4e2def198d..d220ad5732 100755
--- a/ci/install_rust.sh
+++ b/ci/install_rust.sh
@@ -12,5 +12,5 @@ source "${cidir}/lib.sh"
 clone_tests_repo
 
 pushd ${tests_repo_dir}
-.ci/install_rust.sh
+.ci/install_rust.sh ${1:-}
 popd
diff --git a/tools/osbuilder/rootfs-builder/rootfs.sh b/tools/osbuilder/rootfs-builder/rootfs.sh
index 85055383fd..f56f43b3bf 100755
--- a/tools/osbuilder/rootfs-builder/rootfs.sh
+++ b/tools/osbuilder/rootfs-builder/rootfs.sh
@@ -552,7 +552,7 @@ EOT
 		fi
 		[ "$LIBC" == "musl" ] && bash ${script_dir}/../../../ci/install_musl.sh
 		# rust agent needs ${arch}-unknown-linux-${LIBC}
-		rustup show | grep linux-${LIBC} > /dev/null || bash ${script_dir}/../../../ci/install_rust.sh
+		rustup show | grep linux-${LIBC} > /dev/null || bash ${script_dir}/../../../ci/install_rust.sh ${RUST_VERSION}
 		test -r "${HOME}/.cargo/env" && source "${HOME}/.cargo/env"
 		[ "$ARCH" == "aarch64" ] && OLD_PATH=$PATH && export PATH=$PATH:/usr/local/musl/bin