diff --git a/dist/tools/buildsystem_sanity_check/check.sh b/dist/tools/buildsystem_sanity_check/check.sh
index 9b3e52aa7518..a5e88b0a18df 100755
--- a/dist/tools/buildsystem_sanity_check/check.sh
+++ b/dist/tools/buildsystem_sanity_check/check.sh
@@ -84,7 +84,8 @@ UNEXPORTED_VARIABLES+=('USEMODULE_INCLUDES')
 UNEXPORTED_VARIABLES+=('OPENOCD_ADAPTER_INIT')
 UNEXPORTED_VARIABLES+=('OPENOCD_CONFIG')
 UNEXPORTED_VARIABLES+=('OPENOCD_RESET_USE_CONNECT_ASSERT_SRST')
-UNEXPORTED_VARIABLES+=('JLINK_DEVICE' 'JLINK_IF' 'JLINK_RESET_FILE')
+UNEXPORTED_VARIABLES+=('JLINK_DEVICE' 'JLINK_IF')
+UNEXPORTED_VARIABLES+=('JLINK_PRE_FLASH' 'JLINK_RESET_FILE')
 
 EXPORTED_VARIABLES_ONLY_IN_VARS=()
 EXPORTED_VARIABLES_ONLY_IN_VARS+=('APPDEPS')