diff --git a/config.c b/config.c
index 683eee5..516ce7a 100644
--- a/config.c
+++ b/config.c
@@ -95,6 +95,7 @@ struct config_item config_tab[] = {
 	GLOB_ITEM_INT("assume_two_step", 0, 0, 1),
 	PORT_ITEM_INT("boundary_clock_jbod", 0, 0, 1),
 	GLOB_ITEM_INT("check_fup_sync", 0, 0, 1),
+	GLOB_ITEM_INT("clockClass", 248, 0, UINT8_MAX),
 	PORT_ITEM_INT("delayAsymmetry", 0, INT_MIN, INT_MAX),
 	PORT_ITEM_INT("delay_filter_length", 10, 1, INT_MAX),
 	PORT_ITEM_INT("egressLatency", 0, INT_MIN, INT_MAX),
@@ -404,12 +405,6 @@ static enum parser_result parse_global_setting(const char *option,
 			return r;
 		dds->domainNumber = uval;
 
-	} else if (!strcmp(option, "clockClass")) {
-		r = get_ranged_uint(value, &uval, 0, UINT8_MAX);
-		if (r != PARSED_OK)
-			return r;
-		dds->clockQuality.clockClass = uval;
-
 	} else if (!strcmp(option, "clockAccuracy")) {
 		r = get_ranged_uint(value, &uval, 0, UINT8_MAX);
 		if (r != PARSED_OK)
diff --git a/ptp4l.c b/ptp4l.c
index de3af43..8ec52cc 100644
--- a/ptp4l.c
+++ b/ptp4l.c
@@ -44,7 +44,6 @@ static struct config cfg_settings = {
 
 	.dds = {
 		.dds = {
-			.clockQuality.clockClass = 248,
 			.clockQuality.clockAccuracy = 0xfe,
 			.clockQuality.offsetScaledLogVariance = 0xffff,
 			.domainNumber = 0,
@@ -223,6 +222,8 @@ int main(int argc, char *argv[])
 	sk_check_fupsync = config_get_int(cfg, NULL, "check_fup_sync");
 	sk_tx_timeout = config_get_int(cfg, NULL, "tx_timestamp_timeout");
 
+	ds->clockQuality.clockClass = config_get_int(cfg, NULL, "clockClass");
+
 	if (config_get_int(cfg, NULL, "slaveOnly")) {
 	    ds->flags |= DDS_SLAVE_ONLY;
 	    ds->clockQuality.clockClass = 248;