diff --git a/headers/vector_types.h b/headers/vector_types.h
index e9d9628b343c1f950e115e410c59cbb75ed9e31f..1e14ebee3a8c2a5f2495db9214838d24eff4f24a 100644
--- a/headers/vector_types.h
+++ b/headers/vector_types.h
@@ -77,6 +77,8 @@
 #define LLVSIZE 8
 #define VALIGN  64
 
+#define VSQRT(v) _mm512_sqrt_pd(v)
+
 #elif defined ( __AVX__ ) || defined ( __AVX2__ )
 
 #warning "found AVX/AVX2"
@@ -93,6 +95,8 @@
 #define LLVSIZE 4
 #define VALIGN  32
 
+#define VSQRT(v) _mm256_sqrt_pd(v)
+
 #elif defined ( __SSE4__ ) || defined ( __SSE3__ )
 
 #warning "found SSE >= 3"
@@ -108,11 +112,15 @@
 #define LLVSIZE 2
 #define VALIGN  32
 
+#define VSQRT(v) _mm_sqrt_pd(v)
+
 #else
 
 #define VSIZE (sizeof(double))
 #undef VSIZE_FROM_INTRINSICS
 #define NO_VECTOR
+
+#define VSQRT(v) sqrt(v)
 #endif
 
 #endif