diff --git a/scripts/lv_conf_internal_gen.py b/scripts/lv_conf_internal_gen.py
index 39004023b..94d6ef86a 100755
--- a/scripts/lv_conf_internal_gen.py
+++ b/scripts/lv_conf_internal_gen.py
@@ -88,11 +88,6 @@ fout.write(
     #endif
 #endif
 
-/* Renamed config backwards-compatibility */
-#if !defined(LV_FS_DEFAULT_DRIVER_LETTER) && defined(LV_FS_DEFAULT_DRIVE_LETTER)
-    #define LV_FS_DEFAULT_DRIVER_LETTER LV_FS_DEFAULT_DRIVE_LETTER
-#endif
-
 #ifdef CONFIG_LV_COLOR_DEPTH
     #define LV_KCONFIG_PRESENT
 #endif
diff --git a/src/lv_api_map_v9_1.h b/src/lv_api_map_v9_1.h
index 032016c63..6b53b172b 100644
--- a/src/lv_api_map_v9_1.h
+++ b/src/lv_api_map_v9_1.h
@@ -81,7 +81,16 @@ extern "C" {
 #define lv_chart_set_all_value lv_chart_set_all_values
 #define lv_calendar_set_showed_date lv_calendar_set_month_shown
 
-#define LV_FS_DEFAULT_DRIVE_LETTER     LV_FS_DEFAULT_DRIVER_LETTER
+#if defined(LV_FS_DEFAULT_DRIVE_LETTER)
+#warning LV_FS_DEFAULT_DRIVE_LETTER is deprecated. Rename to LV_FS_DEFAULT_DRIVER_LETTER
+
+#if LV_FS_DEFAULT_DRIVER_LETTER == '\0'
+#undef LV_FS_DEFAULT_DRIVER_LETTER
+#define LV_FS_DEFAULT_DRIVER_LETTER LV_FS_DEFAULT_DRIVE_LETTER
+#endif
+
+#endif /* defined(LV_FS_DEFAULT_DRIVE_LETTER) */
+
 
 #define LV_LABEL_LONG_WRAP             LV_LABEL_LONG_MODE_WRAP
 #define LV_LABEL_LONG_DOT              LV_LABEL_LONG_MODE_DOTS
diff --git a/src/lv_conf_internal.h b/src/lv_conf_internal.h
index 5515167f3..3ed69a5ec 100644
--- a/src/lv_conf_internal.h
+++ b/src/lv_conf_internal.h
@@ -66,11 +66,6 @@
     #endif
 #endif
 
-/* Renamed config backwards-compatibility */
-#if !defined(LV_FS_DEFAULT_DRIVER_LETTER) && defined(LV_FS_DEFAULT_DRIVE_LETTER)
-    #define LV_FS_DEFAULT_DRIVER_LETTER LV_FS_DEFAULT_DRIVE_LETTER
-#endif
-
 #ifdef CONFIG_LV_COLOR_DEPTH
     #define LV_KCONFIG_PRESENT
 #endif