--- a/kmail/folderview.cpp
+++ b/kmail/folderview.cpp
@@ -1907,7 +1907,7 @@
            KGuiItem( i18n( "Go To" ) ),
            KGuiItem( i18n( "Do Not Go To" ) ), // defaults
            ":kmail_AskNextFolder",
-           false
+           0
          ) == KMessageBox::No
      )
     return true; // assume selected (do not continue looping)
--- a/kmail/kmmainwidget.cpp
+++ b/kmail/kmmainwidget.cpp
@@ -1588,7 +1588,7 @@
       i18n( "Security Warning" ),
       KGuiItem(i18n( "Use HTML" )),
       KStandardGuiItem::cancel(),
-      "OverrideHtmlWarning", false);
+      "OverrideHtmlWarning", 0);
     if( result == KMessageBox::Cancel ) {
       mPreferHtmlAction->setChecked( false );
       return;
@@ -1617,7 +1617,7 @@
       i18n( "Security Warning" ),
       KGuiItem(i18n( "Load External References" )),
       KStandardGuiItem::cancel(),
-      "OverrideHtmlLoadExtWarning", false);
+      "OverrideHtmlLoadExtWarning", 0);
     if( result == KMessageBox::Cancel ) {
       mPreferHtmlLoadExtAction->setChecked( false );
       return;
--- a/kmail/kmsender.cpp
+++ b/kmail/kmsender.cpp
@@ -575,7 +575,7 @@
         i18n( "Security Warning" ),
         KGuiItem( i18n( "Send Unencrypted" ) ),
         KStandardGuiItem::cancel(),
-        "useCustomTransportWithoutAsking", false );
+        "useCustomTransportWithoutAsking", 0 );
 
       if ( result == KMessageBox::Cancel ) {
         mProgressItem->cancel();