diff --git a/makefiles/defaultmodules.inc.mk b/makefiles/defaultmodules.inc.mk
index 2eee5cad37..f0bc0f9bad 100644
--- a/makefiles/defaultmodules.inc.mk
+++ b/makefiles/defaultmodules.inc.mk
@@ -4,3 +4,9 @@ DEFAULT_MODULE += auto_init
 
 # Initialize all used peripherals by default
 DEFAULT_MODULE += periph_init
+
+# Include potentially added default modules by the board
+-include $(BOARDDIR)/Makefile.default
+
+# Include potentially added default modules by the CPU
+-include $(RIOTCPU)/$(CPU)/Makefile.default