diff --git a/test/microbench/test/aarch64.cc b/test/microbench/test/aarch64.cc
index 0cc43e248422abf25a853ef7debfc1a44d143bb8..578efdaff0352692c99a4aeff310b5b18f1f3d35 100644
--- a/test/microbench/test/aarch64.cc
+++ b/test/microbench/test/aarch64.cc
@@ -45,7 +45,7 @@ void BM_bnez(benchmark::State& state) {
     for (auto _ : state) {
         benchmark_DoNotOptimize();
         asm volatile (
-            "1: cbnz x0, 2f \n"
+            "1: cbnz %0, 2f \n"
             "2:"
             :
             :"r" (x)
@@ -61,7 +61,7 @@ void BM_beqz(benchmark::State& state) {
     for (auto _ : state) {
         benchmark_DoNotOptimize();
         asm volatile (
-            "1: cbz x0, 2f \n"
+            "1: cbz %0, 2f \n"
             "2:"
             :
             :"r" (x)