diff --git a/conf/autopilot/lisa_l_test_progs.makefile b/conf/autopilot/lisa_l_test_progs.makefile
index 3fbe6b5891..6b99f3d107 100644
--- a/conf/autopilot/lisa_l_test_progs.makefile
+++ b/conf/autopilot/lisa_l_test_progs.makefile
@@ -39,7 +39,7 @@
 ################################################################################
 
 ARCH=stm32
-SRC_ARCH=$(ARCH)
+SRC_ARCH=arch/$(ARCH)
 SRC_LISA=lisa
 SRC_LISA_ARCH=$(SRC_LISA)/arch/$(ARCH)
 SRC_BOOZ=booz
diff --git a/conf/autopilot/lisa_passthrough.makefile b/conf/autopilot/lisa_passthrough.makefile
index 004241392b..4b4d8b9a8a 100644
--- a/conf/autopilot/lisa_passthrough.makefile
+++ b/conf/autopilot/lisa_passthrough.makefile
@@ -4,7 +4,7 @@
 #
 #
 
-SRC_ARCH=$(ARCH)
+SRC_ARCH=arch/$(ARCH)
 SRC_BOOZ=booz
 SRC_BOOZ_ARCH=$(SRC_BOOZ)/arch/$(ARCH)
 SRC_LISA=lisa