diff --git a/MCGalaxy/Levels/LevelOptions.cs b/MCGalaxy/Levels/LevelOptions.cs
index 1f3c6cd69..6de63ad74 100644
--- a/MCGalaxy/Levels/LevelOptions.cs
+++ b/MCGalaxy/Levels/LevelOptions.cs
@@ -102,9 +102,23 @@ namespace MCGalaxy {
         }
         
         static void SetOwner(Player p, Level lvl, string value) {
-            lvl.Config.RealmOwner = value.Replace(", ", ",").Replace(" ", ",");
-            if (value.Length == 0) p.Message("Removed realm owner for this level.");
-            else p.Message("Set realm owner/owners of this level to {0}.", value);
+            if (value.Length == 0) {
+                lvl.Config.RealmOwner = "";
+                p.Message("Removed realm owner for this level.");
+                return;
+            }
+
+            value = value.Replace(", ", ",");
+            value = value.Replace(",", " ");
+
+            string[] names = value.SplitSpaces();
+            for (int i = 0; i < names.Length; i++) {
+                names[i] = PlayerInfo.FindMatchesPreferOnline(p, names[i]);
+                if (names[i] == null) return;
+            }
+
+            lvl.Config.RealmOwner = names.Join(","); ;
+            p.Message("Set realm owner/owners of this level to {0}.", names.Join((n) => p.FormatNick(n)));
         }
         
         static void SetTree(Player p, Level lvl, string value) {
diff --git a/MCGalaxy/Player/PlayerInfo.cs b/MCGalaxy/Player/PlayerInfo.cs
index 3d8d6fbbf..5db9cd848 100644
--- a/MCGalaxy/Player/PlayerInfo.cs
+++ b/MCGalaxy/Player/PlayerInfo.cs
@@ -71,7 +71,12 @@ namespace MCGalaxy
             return Matcher.Find(pl, name, out matches, Online.Items,
                                 p => pl.CanSee(p), p => p.name, p => p.color + p.name, "online players");
         }
-        
+
+        /// <summary>
+        /// Matches given name against the names of all online players that the given player can see.
+        /// If no online player is matched, attempts to find an offline player name match.
+        /// </summary>
+        /// <returns>A player name if exactly one found. Otherwise, null.</returns>
         public static string FindMatchesPreferOnline(Player p, string name) {
             if (!Formatter.ValidPlayerName(p, name)) return null;
             int matches;