diff -up /Eigen/src/Core/arch/AltiVec/PacketMath.h /Eigen/src/Core/arch/AltiVec/PacketMath.h
--- /Eigen/src/Core/arch/AltiVec/PacketMath.h
+++ /Eigen/src/Core/arch/AltiVec/PacketMath.h
@@ -1022,7 +1022,7 @@ ptranspose(PacketBlock<Packet2d,2>& kern
 
 template<> EIGEN_STRONG_INLINE Packet2d pblend(const Selector<2>& ifPacket, const Packet2d& thenPacket, const Packet2d& elsePacket) {
   Packet2l select = { ifPacket.select[0], ifPacket.select[1] };
-  Packet2bl mask = vec_cmpeq(reinterpret_cast<Packet2d>(select), reinterpret_cast<Packet2d>(p2l_ONE));
+  Packet2bl mask = reinterpret_cast<Packet2bl>( vec_cmpeq(reinterpret_cast<Packet2d>(select), reinterpret_cast<Packet2d>(p2l_ONE)) );
   return vec_sel(elsePacket, thenPacket, mask);
 }
 #endif // __VSX__