diff --git a/application/src/org/yaaic/activity/AddServerActivity.java b/application/src/org/yaaic/activity/AddServerActivity.java
index fa0d2e80..a24a32a3 100644
--- a/application/src/org/yaaic/activity/AddServerActivity.java
+++ b/application/src/org/yaaic/activity/AddServerActivity.java
@@ -475,7 +475,7 @@ private void validateIdentity() throws ValidationException
         // <special>    ::= '-' | '[' | ']' | '\' | '`' | '^' | '{' | '}'
         // Chars that are not in RFC 1459 but are supported too:
         // | and _
-        Pattern nickPattern = Pattern.compile("^[a-zA-Z_][a-zA-Z0-9^\\-`\\[\\]{}|_\\\\]*$");
+        Pattern nickPattern = Pattern.compile("^[a-zA-Z_][a-zA-Z0-9^\\-`\\[\\]{}|_\\\\\\/]*$");
         if (!nickPattern.matcher(nickname).matches()) {
             throw new ValidationException(getResources().getString(R.string.validation_invalid_nickname));
         }