diff --git a/targets/targets.json b/targets/targets.json
index 7bd02d3fde..70763a031c 100755
--- a/targets/targets.json
+++ b/targets/targets.json
@@ -1570,7 +1570,6 @@
         "core": "Cortex-M0+",
         "extra_labels_add": ["STM32L0", "STM32L072CZ", "STM32L072xx"],
         "supported_form_factors": ["ARDUINO", "MORPHO"],
-        "macros": ["RTC_LSI=1"],
         "config": {
             "clock_source": {
                 "help": "Mask value : USE_PLL_HSE_EXTC (need HW patch) | USE_PLL_HSE_XTAL (need HW patch) | USE_PLL_HSI",