diff --git a/Eigen/src/Core/GenericPacketMath.h b/Eigen/src/Core/GenericPacketMath.h
index 8322b38f8..8cb80bb81 100644
--- a/Eigen/src/Core/GenericPacketMath.h
+++ b/Eigen/src/Core/GenericPacketMath.h
@@ -44,8 +44,6 @@ namespace internal {
 struct default_packet_traits
 {
   enum {
-    HasHalfPacket = 0,
-
     HasAdd       = 1,
     HasSub       = 1,
     HasShift     = 1,
@@ -115,7 +113,6 @@ template<typename T> struct packet_traits : default_packet_traits
     Vectorizable = 0,
     size = 1,
     AlignedOnScalar = 0,
-    HasHalfPacket = 0
   };
   enum {
     HasAdd    = 0,
diff --git a/Eigen/src/Core/arch/AVX512/PacketMathFP16.h b/Eigen/src/Core/arch/AVX512/PacketMathFP16.h
index 33442da99..52fee1e95 100644
--- a/Eigen/src/Core/arch/AVX512/PacketMathFP16.h
+++ b/Eigen/src/Core/arch/AVX512/PacketMathFP16.h
@@ -33,7 +33,6 @@ struct packet_traits<half> : default_packet_traits {
     Vectorizable = 1,
     AlignedOnScalar = 1,
     size = 32,
-    HasHalfPacket = 1,
 
     HasCmp = 1,
     HasAdd = 1,
diff --git a/Eigen/src/Core/arch/SYCL/InteropHeaders.h b/Eigen/src/Core/arch/SYCL/InteropHeaders.h
index 57bfb692a..30c4980d3 100644
--- a/Eigen/src/Core/arch/SYCL/InteropHeaders.h
+++ b/Eigen/src/Core/arch/SYCL/InteropHeaders.h
@@ -35,7 +35,6 @@ struct sycl_packet_traits : default_packet_traits {
     Vectorizable = 1,
     AlignedOnScalar = 1,
     size = lengths,
-    HasHalfPacket = 0,
     HasDiv = 1,
     HasLog = 1,
     HasExp = 1,