diff --git a/tests/impl.cpp b/tests/impl.cpp
index 22170608..6934d7d3 100644
--- a/tests/impl.cpp
+++ b/tests/impl.cpp
@@ -2816,17 +2816,16 @@ result_t test_mm_shuffle_pi16(const SSE2NEONTestImpl &impl, uint32_t iter)
     const int16_t *_a = (const int16_t *) impl.mTestIntPointer1;
     __m64 a;
     __m64 d;
-
+    int16_t _d[4];                                   
 #define TEST_IMPL(IDX)                                    \
     a = load_m64(_a);                                     \
     d = _mm_shuffle_pi16(a, IDX);                         \
                                                           \
-    int16_t _d##IDX[4];                                   \
-    _d##IDX[0] = _a[IDX & 0x3];                           \
-    _d##IDX[1] = _a[(IDX >> 2) & 0x3];                    \
-    _d##IDX[2] = _a[(IDX >> 4) & 0x3];                    \
-    _d##IDX[3] = _a[(IDX >> 6) & 0x3];                    \
-    if (VALIDATE_INT16_M64(d, _d##IDX) != TEST_SUCCESS) { \
+    _d[0] = _a[IDX & 0x3];                           \
+    _d[1] = _a[(IDX >> 2) & 0x3];                    \
+    _d[2] = _a[(IDX >> 4) & 0x3];                    \
+    _d[3] = _a[(IDX >> 6) & 0x3];                    \
+    if (VALIDATE_INT16_M64(d, _d) != TEST_SUCCESS) { \
         return TEST_FAIL;                                 \
     }