diff --git a/src/main/target/FRSKYF3/target.h b/src/main/target/FRSKYF3/target.h
index cad783c869..112251914f 100644
--- a/src/main/target/FRSKYF3/target.h
+++ b/src/main/target/FRSKYF3/target.h
@@ -20,6 +20,10 @@
 
 #pragma once
 
+// Removed to make the firmware fit into flash (in descending order of priority):
+#undef USE_GYRO_OVERFLOW_CHECK // target does not use affected gyros
+#undef USE_RTC_TIME
+
 #define TARGET_BOARD_IDENTIFIER "FRF3"
 #define USE_TARGET_CONFIG
 #define CONFIG_FASTLOOP_PREFERRED_ACC ACC_NONE