diff --git a/variants/esp32/heltec_v2.1/variant.h b/variants/esp32/heltec_v2.1/variant.h
index 8ebccc54f..d0ad39579 100644
--- a/variants/esp32/heltec_v2.1/variant.h
+++ b/variants/esp32/heltec_v2.1/variant.h
@@ -32,6 +32,8 @@
 #define ADC_MULTIPLIER 3.2 // 220k + 100k (320k/100k=3.2)
 // #define ADC_WIDTH ADC_WIDTH_BIT_10
 
+#define HAS_32768HZ 1
+
 #define BATTERY_PIN 37 // A battery voltage measurement pin, voltage divider connected here to measure battery voltage
 #define ADC_CHANNEL ADC1_GPIO37_CHANNEL
-#define EXT_NOTIFY_OUT 13 // Default pin to use for Ext Notify Module.
\ No newline at end of file
+#define EXT_NOTIFY_OUT 13 // Default pin to use for Ext Notify Module.