3 files changed, 7 insertions, 4 deletions
diff --git a/src/arch/i386/include/efi/ipxe/dhcp_arch.h b/src/arch/i386/include/efi/ipxe/dhcp_arch.h
index 902caff95..184177219 100644
--- a/src/arch/i386/include/efi/ipxe/dhcp_arch.h
+++ b/src/arch/i386/include/efi/ipxe/dhcp_arch.h
@@ -33,7 +33,8 @@ FILE_LICENCE ( GPL2_OR_LATER );
 		      'A', 'r', 'c', 'h', ':', '0', '0', '0', '0', '6', ':', \
 		      'U', 'N', 'D', 'I', ':', '0', '0', '3', '0', '1', '0' )
 
-#define DHCP_ARCH_CLIENT_ARCHITECTURE DHCP_WORD ( 6 )
+#define DHCP_ARCH_CLIENT_ARCHITECTURE \
+	DHCP_WORD ( DHCP_CLIENT_ARCHITECTURE_IA32 )
 
 #define DHCP_ARCH_CLIENT_NDI DHCP_OPTION ( 1 /* UNDI */ , 3, 10 /* v3.10 */ )
 
diff --git a/src/arch/i386/include/pcbios/ipxe/dhcp_arch.h b/src/arch/i386/include/pcbios/ipxe/dhcp_arch.h
index 822b3eba9..a36d9cfa1 100644
--- a/src/arch/i386/include/pcbios/ipxe/dhcp_arch.h
+++ b/src/arch/i386/include/pcbios/ipxe/dhcp_arch.h
@@ -33,7 +33,8 @@ FILE_LICENCE ( GPL2_OR_LATER );
 		      'A', 'r', 'c', 'h', ':', '0', '0', '0', '0', '0', ':', \
 		      'U', 'N', 'D', 'I', ':', '0', '0', '2', '0', '0', '1' )
 
-#define DHCP_ARCH_CLIENT_ARCHITECTURE DHCP_WORD ( 0 )
+#define DHCP_ARCH_CLIENT_ARCHITECTURE \
+	DHCP_WORD ( DHCP_CLIENT_ARCHITECTURE_X86 )
 
 #define DHCP_ARCH_CLIENT_NDI DHCP_OPTION ( 1 /* UNDI */ , 2, 1 /* v2.1 */ )
 
diff --git a/src/arch/x86_64/include/efi/ipxe/dhcp_arch.h b/src/arch/x86_64/include/efi/ipxe/dhcp_arch.h
index af41b195e..9a4790fdc 100644
--- a/src/arch/x86_64/include/efi/ipxe/dhcp_arch.h
+++ b/src/arch/x86_64/include/efi/ipxe/dhcp_arch.h
@@ -30,10 +30,11 @@ FILE_LICENCE ( GPL2_OR_LATER );
 
 #define DHCP_ARCH_VENDOR_CLASS_ID \
 	DHCP_STRING ( 'P', 'X', 'E', 'C', 'l', 'i', 'e', 'n', 't', ':',      \
-		      'A', 'r', 'c', 'h', ':', '0', '0', '0', '0', '7', ':', \
+		      'A', 'r', 'c', 'h', ':', '0', '0', '0', '0', '9', ':', \
 		      'U', 'N', 'D', 'I', ':', '0', '0', '3', '0', '1', '0' )
 
-#define DHCP_ARCH_CLIENT_ARCHITECTURE DHCP_WORD ( 7 )
+#define DHCP_ARCH_CLIENT_ARCHITECTURE \
+	DHCP_WORD ( DHCP_CLIENT_ARCHITECTURE_X86_64 )
 
 #define DHCP_ARCH_CLIENT_NDI DHCP_OPTION ( 1 /* UNDI */ , 3, 10 /* v3.10 */ )