diff --git a/test/json_config/json_config.sh b/test/json_config/json_config.sh
index 5dd95e0c6..396213469 100755
--- a/test/json_config/json_config.sh
+++ b/test/json_config/json_config.sh
@@ -150,6 +150,20 @@ function create_bdev_subsystem_config() {
 
 	local expected_notifications=()
 
+	local event_line event ev_type ev_ctx
+	local rc=""
+
+	# Before testing notifications generated by the operations in this function, we
+	# need add existing notification to the expected list first. Otherwise it would fail.
+	while read -r event_line; do
+		# remove ID
+		event="${event_line%:*}"
+		ev_type=${event%:*}
+		ev_ctx=${event#*:}
+
+		expected_notifications+=(${ev_type}:${ev_ctx})
+	done < <(tgt_rpc notify_get_notifications -i ${last_event_id} | jq -r '.[] | "\(.type):\(.ctx):\(.id)"')
+
 	if [[ $SPDK_TEST_BLOCKDEV -eq 1 ]]; then
 		local lvol_store_base_bdev=Nvme0n1
 		if ! tgt_rpc get_bdevs --name ${lvol_store_base_bdev} > /dev/null; then
@@ -174,7 +188,6 @@ function create_bdev_subsystem_config() {
 		tgt_rpc bdev_malloc_create 16 4096 --name Malloc1
 
 		expected_notifications+=(
-			bdev_register:${lvol_store_base_bdev}
 			bdev_register:${lvol_store_base_bdev}p1
 			bdev_register:${lvol_store_base_bdev}p0
 			bdev_register:Malloc3