diff --git a/sys/Makefile.include b/sys/Makefile.include
index 0c8c6b7ecfdb491a282b6d1e02d78f18765fe5c1..24b8c7259b115840d9af3a9f030a94abdb75e98c 100644
--- a/sys/Makefile.include
+++ b/sys/Makefile.include
@@ -83,4 +83,6 @@ ifneq (,$(filter ssp,$(USEMODULE)))
   include $(RIOTBASE)/sys/ssp/Makefile.include
 endif
 
-INCLUDES += -I$(RIOTBASE)/sys/libc/include
+ifneq (native,$(BOARD))
+  INCLUDES += -I$(RIOTBASE)/sys/libc/include
+endif