diff --git a/Eigen/src/Core/arch/AVX/PacketMath.h b/Eigen/src/Core/arch/AVX/PacketMath.h
index 0e0744db0..1542215ce 100644
--- a/Eigen/src/Core/arch/AVX/PacketMath.h
+++ b/Eigen/src/Core/arch/AVX/PacketMath.h
@@ -1338,16 +1338,31 @@ ptranspose(PacketBlock<Packet4d,4>& kernel) {
 }
 
 template<> EIGEN_STRONG_INLINE Packet8f pblend(const Selector<8>& ifPacket, const Packet8f& thenPacket, const Packet8f& elsePacket) {
+#ifdef EIGEN_VECTORIZE_AVX2  
   const __m256i zero = _mm256_setzero_si256();
   const __m256i select = _mm256_set_epi32(ifPacket.select[7], ifPacket.select[6], ifPacket.select[5], ifPacket.select[4], ifPacket.select[3], ifPacket.select[2], ifPacket.select[1], ifPacket.select[0]);
   __m256i false_mask = _mm256_cmpeq_epi32(zero, select);
   return _mm256_blendv_ps(thenPacket, elsePacket, _mm256_castsi256_ps(false_mask));
+#else
+  const __m256 zero = _mm256_setzero_ps();
+  const __m256 select = _mm256_set_ps(ifPacket.select[7], ifPacket.select[6], ifPacket.select[5], ifPacket.select[4], ifPacket.select[3], ifPacket.select[2], ifPacket.select[1], ifPacket.select[0]);
+  __m256 false_mask = _mm256_cmp_ps(select, zero, _CMP_EQ_UQ);
+  return _mm256_blendv_ps(thenPacket, elsePacket, false_mask);
+#endif
 }
+
 template<> EIGEN_STRONG_INLINE Packet4d pblend(const Selector<4>& ifPacket, const Packet4d& thenPacket, const Packet4d& elsePacket) {
+#ifdef EIGEN_VECTORIZE_AVX2  
   const __m256i zero = _mm256_setzero_si256();
   const __m256i select = _mm256_set_epi64x(ifPacket.select[3], ifPacket.select[2], ifPacket.select[1], ifPacket.select[0]);
   __m256i false_mask = _mm256_cmpeq_epi64(select, zero);
   return _mm256_blendv_pd(thenPacket, elsePacket, _mm256_castsi256_pd(false_mask));
+#else
+  const __m256d zero = _mm256_setzero_pd();
+  const __m256d select = _mm256_set_pd(ifPacket.select[3], ifPacket.select[2], ifPacket.select[1], ifPacket.select[0]);
+  __m256d false_mask = _mm256_cmp_pd(select, zero, _CMP_EQ_UQ);
+  return _mm256_blendv_pd(thenPacket, elsePacket, false_mask);
+#endif
 }
 
 // Packet math for Eigen::half