diff --git a/opensm/opensm/osm_subnet.c b/opensm/opensm/osm_subnet.c
index c41962d..3dab92f 100644
--- a/opensm/opensm/osm_subnet.c
+++ b/opensm/opensm/osm_subnet.c
@@ -374,8 +374,17 @@ static void subn_init_qos_options(IN osm_qos_options_t * opt)
 {
 	opt->max_vls = 0;
 	opt->high_limit = -1;
+   	if  (opt->vlarb_high != OSM_DEFAULT_QOS_VLARB_HIGH) {
+    		free(opt->vlarb_high);
+    	}
 	opt->vlarb_high = NULL;
+    	if  (opt->vlarb_low != OSM_DEFAULT_QOS_VLARB_LOW) {
+        	free(opt->vlarb_low);
+    	}
 	opt->vlarb_low = NULL;
+    	if  (opt->sl2vl != OSM_DEFAULT_QOS_SL2VL) {
+       		free(opt->sl2vl);
+    	}
 	opt->sl2vl = NULL;
 }