diff --git a/README.md b/README.md
index 44404cb..f99c071 100755
--- a/README.md
+++ b/README.md
@@ -124,7 +124,9 @@ specified host and port. Note that the base 32 I2P destination address determini
 
 or, if you would like a vanity b32 address for your server tunnel that begins with a 3 character (alphanumeric) prefix, type:
 
-`tunnel-control.sh server.create.vanity <host> <port> <(optional) directory> <prefix>`
+`tunnel-control.sh server.create.vanity <host> <port> <directory> <prefix>`
+
+(if you do not want to specify the directory parameter, specify `none` as the directory)
 
 #### Check the state of a tunnel. Returns "opening" or "open"
 
diff --git a/org.getmonero.i2p.zero/src/org/getmonero/i2p/zero/TunnelControl.java b/org.getmonero.i2p.zero/src/org/getmonero/i2p/zero/TunnelControl.java
index b3bd0b0..0edfd8c 100644
--- a/org.getmonero.i2p.zero/src/org/getmonero/i2p/zero/TunnelControl.java
+++ b/org.getmonero.i2p.zero/src/org/getmonero/i2p/zero/TunnelControl.java
@@ -549,8 +549,7 @@ public class TunnelControl implements Runnable {
           switch(args[0]) {
 
             case "server.create.vanity" : {
-              if(args.length>=5) vanityPrefix = args[4];
-              else if(args.length==4) vanityPrefix = args[3];
+              vanityPrefix = args[4];
             }
 
             case "server.create": {
@@ -558,6 +557,7 @@ public class TunnelControl implements Runnable {
               int destPort = Integer.parseInt(args[2]);
               File serverTunnelConfigDir = null;
               if(args.length>=4) serverTunnelConfigDir = new File(args[3]);
+              if("none".equals(serverTunnelConfigDir)) serverTunnelConfigDir = null;
               File serverKeyFile;
               KeyPair keyPair;
               if(serverTunnelConfigDir!=null) {