diff --git a/src/config/defaults/linux.h b/src/config/defaults/linux.h
index bc5ba785..75fd617f 100644
--- a/src/config/defaults/linux.h
+++ b/src/config/defaults/linux.h
@@ -15,7 +15,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
 #define UMALLOC_LINUX
 #define NAP_LINUX
 #define SMBIOS_LINUX
-#define SANBOOT_NULL
+#define SANBOOT_DUMMY
 #define ENTROPY_LINUX
 #define TIME_LINUX
 #define REBOOT_NULL
@@ -25,4 +25,10 @@ FILE_LICENCE ( GPL2_OR_LATER );
 
 #define IMAGE_SCRIPT
 
+#define SANBOOT_PROTO_ISCSI
+#define SANBOOT_PROTO_AOE
+#define SANBOOT_PROTO_IB_SRP
+#define SANBOOT_PROTO_FCP
+#define SANBOOT_PROTO_HTTP
+
 #endif /* CONFIG_DEFAULTS_LINUX_H */