diff --git a/src/main/target/SPRACINGF3EVO/target.h b/src/main/target/SPRACINGF3EVO/target.h
index 46be8a86c7..c387e356d9 100755
--- a/src/main/target/SPRACINGF3EVO/target.h
+++ b/src/main/target/SPRACINGF3EVO/target.h
@@ -74,6 +74,9 @@
 #define USE_ESCSERIAL
 #define ESCSERIAL_TIMER_TX_HARDWARE 0 // PWM 1
 
+#undef USE_SOFTSERIAL1
+#undef USE_SOFTSERIAL2
+
 #define UART1_TX_PIN            PA9
 #define UART1_RX_PIN            PA10