diff --git a/cpu/atmega_common/Makefile b/cpu/atmega_common/Makefile
index d945090d16..41d51c7b31 100644
--- a/cpu/atmega_common/Makefile
+++ b/cpu/atmega_common/Makefile
@@ -4,8 +4,4 @@ MODULE = atmega_common
 # add a list of subdirectories, that should also be build
 DIRS = periph avr_libc_extra
 
-ifneq (,$(filter cpu_atmega_common_cxx,$(USEMODULE)))
-  DIRS += cxx
-endif
-
 include $(RIOTBASE)/Makefile.base