diff --git a/conf/firmwares/subsystems/shared/sdlog.makefile b/conf/firmwares/subsystems/shared/sdlog.makefile
index 74b7c7b9e6..66029e9158 100644
--- a/conf/firmwares/subsystems/shared/sdlog.makefile
+++ b/conf/firmwares/subsystems/shared/sdlog.makefile
@@ -1,8 +1 @@
-# Hey Emacs, this is a -*- makefile -*-
-
-sdlog_CFLAGS = -DDOWNLINK
-sdlog_srcs = subsystems/datalink/downlink.c modules/loggers/pprzlog_tp.c pprzlink/src/pprzlog_transport.c
-
-ap.CFLAGS += $(sdlog_CFLAGS)
-ap.srcs += $(sdlog_srcs)
-
+$(error Error: The sdlog subsystem has been replaced by a module and renamed pprzlog, replace <subsystem name="sdlog"/> by <module name="pprzlog"/>)