diff --git a/src/main/target/BLUEJAYF4/initialisation.c b/src/main/target/BLUEJAYF4/initialisation.c
index 7f3b3b3f06..ff17d47307 100644
--- a/src/main/target/BLUEJAYF4/initialisation.c
+++ b/src/main/target/BLUEJAYF4/initialisation.c
@@ -37,6 +37,8 @@
 
 #include "hardware_revision.h"
 
+#define UART1_INVERTER          PC9
+
 void targetPreInit(void)
 {
     switch (hardwareRevision) {
diff --git a/src/main/target/BLUEJAYF4/target.h b/src/main/target/BLUEJAYF4/target.h
index dc84eacce7..43f6a3808c 100644
--- a/src/main/target/BLUEJAYF4/target.h
+++ b/src/main/target/BLUEJAYF4/target.h
@@ -41,9 +41,7 @@
 #define BEEPER_INVERTED
 
 #define INVERTER_PIN_UART6      PB15
-//#define INVERTER_PIN_UART1     PC9
-
-#define UART1_INVERTER          PC9
+//#define INVERTER_PIN_UART1     PC9 // Polarity depends on revision; handled in config.c
 
 // MPU6500 interrupt
 #define USE_EXTI