diff --git a/bundles/org.openhab.core/src/main/java/org/openhab/core/net/NetUtil.java b/bundles/org.openhab.core/src/main/java/org/openhab/core/net/NetUtil.java
index a7c52a19707..378934cebf8 100644
--- a/bundles/org.openhab.core/src/main/java/org/openhab/core/net/NetUtil.java
+++ b/bundles/org.openhab.core/src/main/java/org/openhab/core/net/NetUtil.java
@@ -662,6 +662,7 @@ public static List<InetAddress> getAddressesRangeByCidrAddress(CidrAddress iFace
      * 
      * @param address IPv4 address in byte array form (i.e. 127.0.0.1 = 01111111 00000000 00000000 00000001)
      * @param maskLength Network mask length (i.e. the number after the forward-slash, '/', in CIDR notation)
+     * @return A list of all possible IP addresses in byte array form
      */
     private static List<byte[]> getAddressesInSubnet(byte[] address, int maskLength) {
         byte[] lowestAddress = address.clone();