diff --git a/boards/freefly/can-rtk-gps/src/boot.c b/boards/freefly/can-rtk-gps/src/boot.c
index ee1b1f6765..4fc6fa5c4a 100644
--- a/boards/freefly/can-rtk-gps/src/boot.c
+++ b/boards/freefly/can-rtk-gps/src/boot.c
@@ -187,6 +187,15 @@ void board_indicate(uiindication_t indication)
 		i2l[indication].hz);
 }
 
+// I2C Driver wants to use the px4 log
+
 __EXPORT void px4_log_modulename(int level, const char *moduleName, const char *fmt, ...)
 {
 }
+
+// I2C Driver wants to use printf etal (putc,wite) so cut it off here
+
+int printf(FAR const IPTR char *fmt, ...)
+{
+	return 0;
+}