--- kdecore/kurl.cpp
+++ kdecore/kurl.cpp
@@ -30,6 +30,7 @@
#include <kglobal.h>
#include <kidna.h>
#include <kprotocolinfo.h>
+#include <kstringhandler.h>
#endif

#include <stdio.h>
@@ -183,7 +184,7 @@ static QString lazy_encode( const QStrin
        (character == '?') || // Start of query delimiter
        ((character == '@') && encodeAt) || // Username delimiter
        (character == '#') || // Start of reference delimiter
-        ((character == 32) && (i+1 == old_length))) // A trailing space
+        ((character == 32) && (i+1 == old_length || segment[i+1] == ' '))) // A trailing space
    {
      new_segment[ new_length++ ] = '%';

@@ -1540,7 +1541,13 @@ QString KURL::prettyURL( int _trailing )
    u += "//";
    if ( hasUser() )
    {
-      u += lazy_encode(m_strUser);
+      QString s = m_strUser;
+#ifndef KDE_QT_ONLY
+      // shorten the username, its unlikely to be valid without password anyway
+      if (!hasPass())
+          s = KStringHandler::csqueeze(s, 16);
+#endif
+      u += encode(s, 0, 0);
      // Don't show password!
      u += "@";
    }