diff --git a/llvm-build/build_musl.sh b/llvm-build/build_musl.sh
index 39a0d23ac89363cfec0565bc91b237dc8e22311f..a047c8efefc450e12176fac65bfa7df9d6c29059 100755
--- a/llvm-build/build_musl.sh
+++ b/llvm-build/build_musl.sh
@@ -11,7 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-set -e
+set -ex
 
 # This script is used to create musl's libc.so.