diff --git a/source/util/src/tdecompress.c b/source/util/src/tdecompress.c
index 1252b72471..470d221100 100644
--- a/source/util/src/tdecompress.c
+++ b/source/util/src/tdecompress.c
@@ -398,11 +398,12 @@ int32_t tsDecompressTimestampAvx512(const char *const input, const int32_t nelem
                                     bool UNUSED_PARAM(bigEndian)) {
   int64_t *ostream = (int64_t *)output;
   int32_t  ipos = 1, opos = 0;
-  __m128i  prevVal = _mm_setzero_si128();
-  __m128i  prevDelta = _mm_setzero_si128();
 
 #if __AVX512VL__
 
+  __m128i  prevVal = _mm_setzero_si128();
+  __m128i  prevDelta = _mm_setzero_si128();
+
   int32_t   numOfBatch = nelements >> 1;
   int32_t   remainder = nelements & 0x01;
   __mmask16 mask2[16] = {0, 0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff};