diff --git a/Eigen/src/Core/arch/SSE/TypeCasting.h b/Eigen/src/Core/arch/SSE/TypeCasting.h
index 02a670c..9a7732a 100644
--- a/Eigen/src/Core/arch/SSE/TypeCasting.h
+++ b/Eigen/src/Core/arch/SSE/TypeCasting.h
@@ -89,7 +89,7 @@
 template <>
 EIGEN_STRONG_INLINE Packet2l pcast<Packet2d, Packet2l>(const Packet2d& a) {
 #if EIGEN_ARCH_x86_64
-  return _mm_set_epi64x(_mm_cvtsd_si64(preverse(a)), _mm_cvtsd_si64(a));
+  return _mm_set_epi64x(_mm_cvttsd_si64(preverse(a)), _mm_cvttsd_si64(a));
 #else
   return _mm_set_epi64x(static_cast<int64_t>(pfirst(preverse(a))), static_cast<int64_t>(pfirst(a)));
 #endif