diff --git a/kdecore/kernel/kcmdlineargs.cpp b/kdecore/kernel/kcmdlineargs.cpp
index 6f6d57a9..fb8310fb 100644
--- a/kdecore/kernel/kcmdlineargs.cpp
+++ b/kdecore/kernel/kcmdlineargs.cpp
@@ -1522,8 +1522,7 @@ KUrl KCmdLineArgs::makeURL(const QByteArray &_urlArg)
     return KUrl(urlArg); // Argument is a URL
 }
 
-void
-KCmdLineArgsPrivate::addArgument(const QByteArray &argument)
+void KCmdLineArgsPrivate::addArgument(const QByteArray &argument)
 {
    if (!parsedArgList)
       parsedArgList = new KCmdLineParsedArgs;
@@ -1531,20 +1530,6 @@ KCmdLineArgsPrivate::addArgument(const QByteArray &argument)
    parsedArgList->append(argument);
 }
 
-void
-KCmdLineArgs::addTempFileOption()
-{
-    KCmdLineOptions tmpopt;
-    tmpopt.add( "tempfile", ki18n("The files/URLs opened by the application will be deleted after use") );
-    KCmdLineArgs::addCmdLineOptions( tmpopt, ki18n("KDE-tempfile"), "kde-tempfile" );
-}
-
-bool KCmdLineArgs::isTempFileSet()
-{
-    KCmdLineArgs* args = KCmdLineArgs::parsedArgs( "kde-tempfile" );
-    return args && args->isSet( "tempfile" );
-}
-
 QStringList KCmdLineArgs::allArguments()
 {
     QStringList lst;
diff --git a/kdecore/kernel/kcmdlineargs.h b/kdecore/kernel/kcmdlineargs.h
index 9a214d38..0ed05845 100644
--- a/kdecore/kernel/kcmdlineargs.h
+++ b/kdecore/kernel/kcmdlineargs.h
@@ -598,18 +598,6 @@ public:
    */
   static void saveAppArgs( QDataStream &);
 
-  /**
-   * Add standard option --tempfile
-   */
-  static void addTempFileOption();
-
-  // this avoids having to know the "id" used by addTempFileOption
-  // but this approach doesn't scale well, we can't have 50 standard options here...
-  /**
-   * @return true if --tempfile was set
-   */
-  static bool isTempFileSet();
-
   /**
    * Returns the number of arguments returned by qtArgv()
    *
diff --git a/kdeui/kernel/kuniqueapplication.h b/kdeui/kernel/kuniqueapplication.h
index 3e36e2e0..58cb7749 100644
--- a/kdeui/kernel/kuniqueapplication.h
+++ b/kdeui/kernel/kuniqueapplication.h
@@ -39,10 +39,6 @@
  * your application can only be opened once per user or once per host, you
  * need to ensure this independently of KUniqueApplication.
  *
- * If your application is used to open files, it should also support the --tempfile
- * option (see KCmdLineArgs::addTempFileOption()), to delete tempfiles after use.
- * Add X-KDE-HasTempFileOption=true to the .desktop file to indicate this.
- *
  * @see KApplication
  * @author Preston Brown <pbrown@kde.org>
  */
diff --git a/kio/application.desktop b/kio/application.desktop
index 606582aa..7e8f5495 100644
--- a/kio/application.desktop
+++ b/kio/application.desktop
@@ -127,8 +127,5 @@ Type=QStringList
 [PropertyDef::X-KDE-ParentApp]
 Type=QString
 
-[PropertyDef::X-KDE-HasTempFileOption]
-Type=bool
-
 [PropertyDef::X-KDE-Protocols]
 Type=QStringList