diff --git a/source/src/cube.h b/source/src/cube.h
index 90b961ea..0fec17d1 100644
--- a/source/src/cube.h
+++ b/source/src/cube.h
@@ -64,7 +64,7 @@ extern float waterlevel;
 
 #define AC_MASTER_URI "ms.cubers.net"
 
-// uncommend this line for production release
+// uncomment this line for production release
 //#define PRODUCTION
 
 #ifdef PRODUCTION
diff --git a/source/src/serverms.cpp b/source/src/serverms.cpp
index 203310de..7b702ee0 100644
--- a/source/src/serverms.cpp
+++ b/source/src/serverms.cpp
@@ -361,5 +361,10 @@ void servermsinit(bool listen)
         if(lansock == ENET_SOCKET_NULL) mlog(ACLOG_WARNING, "could not create LAN server info socket");
         else enet_socket_set_option(lansock, ENET_SOCKOPT_NONBLOCK, 1);
     }
-    if(!usemaster) mlog(ACLOG_INFO, "server is LAN-only - without connection to masterserver");
+    if(!usemaster){
+        mlog(ACLOG_INFO, "server is LAN-only - without connection to masterserver");
+        if(listen){
+            if(!scl.ssk) mlog(ACLOG_INFO, "ACTION REQUIRED: you must provide a PRIVATE SERVER KEY via the '-Y' command line argument");
+        }
+    }
 }