diff --git a/src/drivers/batt_smbus/batt_smbus.cpp b/src/drivers/batt_smbus/batt_smbus.cpp
index 0879622e5b..e2b88f3318 100644
--- a/src/drivers/batt_smbus/batt_smbus.cpp
+++ b/src/drivers/batt_smbus/batt_smbus.cpp
@@ -87,7 +87,7 @@ int BATT_SMBUS::task_spawn(int argc, char *argv[])
 	int ch;
 	const char *myoptarg = nullptr;
 
-	while ((ch = px4_getopt(argc, argv, "XTRIA:", &myoptind, &myoptarg)) != EOF) {
+	while ((ch = px4_getopt(argc, argv, "XTRIA", &myoptind, &myoptarg)) != EOF) {
 		switch (ch) {
 		case 'X':
 			busid = BATT_SMBUS_BUS_I2C_EXTERNAL;