diff --git a/ksanetwain/ktwain_widget.cpp b/ksanetwain/ktwain_widget.cpp
--- a/ksanetwain/ktwain_widget.cpp
+++ b/ksanetwain/ktwain_widget.cpp
@@ -118,6 +118,10 @@
 {
 }
 
+void KSaneWidget::startPreviewScan()
+{
+}
+
 void KSaneWidget::scanCancel()
 {
     emit scanProgress(0);