diff --git a/src/flashcart/64drive/64drive.c b/src/flashcart/64drive/64drive.c
index b2ed3b36..bf0094c0 100644
--- a/src/flashcart/64drive/64drive.c
+++ b/src/flashcart/64drive/64drive.c
@@ -73,6 +73,7 @@ static flashcart_err_t d64_deinit (void) {
 static bool d64_has_feature (flashcart_features_t feature) {
     switch (feature) {
         case FLASHCART_FEATURE_64DD: return false;
+        case FLASHCART_FEATURE_RTC: return true;
         default: return false;
     }
 }
diff --git a/src/flashcart/flashcart.h b/src/flashcart/flashcart.h
index 0e97e807..0adb56e3 100644
--- a/src/flashcart/flashcart.h
+++ b/src/flashcart/flashcart.h
@@ -27,6 +27,7 @@ typedef enum {
 /** @brief List of optional supported flashcart features */
 typedef enum {
     FLASHCART_FEATURE_64DD,
+    FLASHCART_FEATURE_RTC,
 } flashcart_features_t;
 
 /** @brief Flashcart save type enumeration */
diff --git a/src/flashcart/sc64/sc64.c b/src/flashcart/sc64/sc64.c
index 58f4c450..895b6d5d 100644
--- a/src/flashcart/sc64/sc64.c
+++ b/src/flashcart/sc64/sc64.c
@@ -260,6 +260,7 @@ static flashcart_err_t sc64_deinit (void) {
 static bool sc64_has_feature (flashcart_features_t feature) {
     switch (feature) {
         case FLASHCART_FEATURE_64DD: return true;
+        case FLASHCART_FEATURE_RTC: return true;
         default: return false;
     }
 }