diff --git a/boards/native/Makefile.include b/boards/native/Makefile.include
index 3974fbbc49..7ec89270ca 100644
--- a/boards/native/Makefile.include
+++ b/boards/native/Makefile.include
@@ -1,7 +1,7 @@
-export NATIVEINCLUDES += -DNATIVE_INCLUDES
-export NATIVEINCLUDES += -I$(RIOTBOARD)/native/include/
-export NATIVEINCLUDES += -I$(RIOTBASE)/core/include/
-export NATIVEINCLUDES += -I$(RIOTBASE)/drivers/include/
+NATIVEINCLUDES += -DNATIVE_INCLUDES
+NATIVEINCLUDES += -I$(RIOTBOARD)/native/include/
+NATIVEINCLUDES += -I$(RIOTBASE)/core/include/
+NATIVEINCLUDES += -I$(RIOTBASE)/drivers/include/
 
 ifeq ($(OS),Darwin)
   DEBUGGER ?= lldb
@@ -92,7 +92,7 @@ debug-valgrind-server: export VALGRIND_FLAGS ?= --vgdb=yes --vgdb-error=0 -v \
 term-cachegrind: export CACHEGRIND_FLAGS += --tool=cachegrind
 term-gprof: TERMPROG = GMON_OUT_PREFIX=gmon.out $(ELFFILE)
 all-valgrind: CFLAGS += -DHAVE_VALGRIND_H
-all-valgrind: export NATIVEINCLUDES += $(shell pkg-config valgrind --cflags)
+all-valgrind: NATIVEINCLUDES += $(shell pkg-config valgrind --cflags)
 all-gprof: CFLAGS += -pg
 all-gprof: LINKFLAGS += -pg
 all-asan: CFLAGS += -fsanitize=address -fno-omit-frame-pointer
diff --git a/cpu/native/Makefile.include b/cpu/native/Makefile.include
index 4e213560e1..7a8b045b28 100644
--- a/cpu/native/Makefile.include
+++ b/cpu/native/Makefile.include
@@ -1,8 +1,8 @@
-export NATIVEINCLUDES += -I$(RIOTCPU)/native/include -I$(RIOTBASE)/sys/include
+NATIVEINCLUDES += -I$(RIOTCPU)/native/include -I$(RIOTBASE)/sys/include
 
 # Local include for OSX
 ifeq ($(BUILDOSXNATIVE),1)
-    export NATIVEINCLUDES += -I$(RIOTCPU)/native/osx-libc-extra
+  NATIVEINCLUDES += -I$(RIOTCPU)/native/osx-libc-extra
 endif
 
 USEMODULE += periph
diff --git a/dist/tools/buildsystem_sanity_check/check.sh b/dist/tools/buildsystem_sanity_check/check.sh
index 1acfca8810..6bdde8ded9 100755
--- a/dist/tools/buildsystem_sanity_check/check.sh
+++ b/dist/tools/buildsystem_sanity_check/check.sh
@@ -96,6 +96,7 @@ EXPORTED_VARIABLES_ONLY_IN_VARS=()
 EXPORTED_VARIABLES_ONLY_IN_VARS+=('APPDEPS')
 EXPORTED_VARIABLES_ONLY_IN_VARS+=('CPU_ARCH')
 EXPORTED_VARIABLES_ONLY_IN_VARS+=('CPU_FAM')
+EXPORTED_VARIABLES_ONLY_IN_VARS+=('NATIVEINCLUDES')
 EXPORTED_VARIABLES_ONLY_IN_VARS+=('UNDEF')
 EXPORTED_VARIABLES_ONLY_IN_VARS+=('USEMODULE')
 EXPORTED_VARIABLES_ONLY_IN_VARS+=('TARGET_ARCH')
diff --git a/makefiles/vars.inc.mk b/makefiles/vars.inc.mk
index d85b566a02..c96c626452 100644
--- a/makefiles/vars.inc.mk
+++ b/makefiles/vars.inc.mk
@@ -17,6 +17,7 @@ export CPU_FAM               # An intermediate identifier between CPU and CPU_MO
 export MCU                   # The MCU, set by the board's Makefile.include, or defaulted to the same value as CPU.
 export INCLUDES              # The extra include paths, set by the various Makefile.include files.
 export CXXINCLUDES           # The extra include paths for c++, set by the various Makefile.include files.
+export NATIVEINCLUDES        # The native include paths, set by the various native Makefile.include files.
 
 export USEMODULE             # Sys Module dependencies of the application. Set in the application's Makefile.
 export USEPKG                # Pkg dependencies (third party modules) of the application. Set in the application's Makefile.