diff --git a/CMakeLists.txt b/CMakeLists.txt
index 07ba7273573..75ba3ca6276 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -614,6 +614,7 @@ if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64")
   include(CheckCSourceCompiles)
   check_c_source_compiles("#include <arm_neon.h>
 int main() {
+  float a[] = {1.0, 1.0};
   float32x4x2_t v;
   v.val[0] = vcombine_f32 (vcreate_f32 (__AARCH64_UINT64_C (0)), vcreate_f32 (__AARCH64_UINT64_C (0)));
   v.val[1] = vcombine_f32 (vcreate_f32 (__AARCH64_UINT64_C (0)), vcreate_f32 (__AARCH64_UINT64_C (0)));