diff --git a/lib/raid6/avx512.c b/lib/raid6/avx512.c
index f524a797200652aec220f3c09f0c5e790b234c87..46df7977b9718bdc4b6ca1960792bae62b8442b7 100644
--- a/lib/raid6/avx512.c
+++ b/lib/raid6/avx512.c
@@ -29,7 +29,7 @@
 
 static const struct raid6_avx512_constants {
 	u64 x1d[8];
-} raid6_avx512_constants __aligned(512) = {
+} raid6_avx512_constants __aligned(512/8) = {
 	{ 0x1d1d1d1d1d1d1d1dULL, 0x1d1d1d1d1d1d1d1dULL,
 	  0x1d1d1d1d1d1d1d1dULL, 0x1d1d1d1d1d1d1d1dULL,
 	  0x1d1d1d1d1d1d1d1dULL, 0x1d1d1d1d1d1d1d1dULL,