diff --git a/newfolderdialog.cpp b/newfolderdialog.cpp
index 16f1712c2..35bb461b7 100644
--- a/newfolderdialog.cpp
+++ b/newfolderdialog.cpp
@@ -212,10 +212,12 @@ void NewFolderDialog::slotOk()
     QString delimiter;
     if ( mFolder->folderType() == KMFolderTypeImap ) {
       KMAcctImap* ai = static_cast<KMFolderImap*>( mFolder->storage() )->account();
-      delimiter = ai->delimiterForFolder( mFolder->storage() );
+      if ( ai )
+        delimiter = ai->delimiterForFolder( mFolder->storage() );
     } else {
       KMAcctCachedImap* ai = static_cast<KMFolderCachedImap*>( mFolder->storage() )->account();
-      delimiter = ai->delimiterForFolder( mFolder->storage() );
+      if ( ai )
+        delimiter = ai->delimiterForFolder( mFolder->storage() );
     }
     if ( !delimiter.isEmpty() && fldName.find( delimiter ) != -1 ) {
       KMessageBox::error( this, i18n( "Your IMAP server does not allow the character '%1'; please choose another folder name." ).arg( delimiter ) );