diff --git a/Makefile.include b/Makefile.include
index f1770191f3..51b1abb4b6 100644
--- a/Makefile.include
+++ b/Makefile.include
@@ -419,7 +419,7 @@ BASELIBS += $(APPDEPS)
 
 
 # add extra include paths for packages in $(USEMODULE)
-export USEMODULE_INCLUDES =
+USEMODULE_INCLUDES =
 
 include $(RIOTBASE)/sys/Makefile.include
 include $(RIOTBASE)/drivers/Makefile.include
diff --git a/dist/tools/buildsystem_sanity_check/check.sh b/dist/tools/buildsystem_sanity_check/check.sh
index b2ab9eb392..674f5b3a2c 100755
--- a/dist/tools/buildsystem_sanity_check/check.sh
+++ b/dist/tools/buildsystem_sanity_check/check.sh
@@ -80,10 +80,12 @@ UNEXPORTED_VARIABLES+=('STLINK_VERSION')
 UNEXPORTED_VARIABLES+=('PORT_LINUX' 'PORT_DARWIN')
 UNEXPORTED_VARIABLES+=('PORT[ ?=:]' 'PORT$')
 UNEXPORTED_VARIABLES+=('LINKFLAGS' 'LINKER_SCRIPT')
+UNEXPORTED_VARIABLES+=('USEMODULE_INCLUDES')
 
 EXPORTED_VARIABLES_ONLY_IN_VARS=()
 EXPORTED_VARIABLES_ONLY_IN_VARS+=('CPU_ARCH')
 EXPORTED_VARIABLES_ONLY_IN_VARS+=('CPU_FAM')
+EXPORTED_VARIABLES_ONLY_IN_VARS+=('USEMODULE')
 EXPORTED_VARIABLES_ONLY_IN_VARS+=('TOOLCHAIN')
 EXPORTED_VARIABLES_ONLY_IN_VARS+=('WERROR')
 EXPORTED_VARIABLES_ONLY_IN_VARS+=('WPEDANTIC')