diff --git a/libs/gtkmm2ext/scroomer.cc b/libs/gtkmm2ext/scroomer.cc
index 40892301bc..3009449c91 100644
--- a/libs/gtkmm2ext/scroomer.cc
+++ b/libs/gtkmm2ext/scroomer.cc
@@ -202,6 +202,23 @@ Scroomer::on_motion_notify_event (GdkEventMotion* ev)
 	return true;
 }
 
+bool
+Scroomer::on_scroll_event (GdkEventScroll* ev)
+{
+	switch (ev->direction) {
+	case GDK_SCROLL_UP:
+		adj.set_value (adj.get_value() - adj.get_page_size()/10.0);
+		break;
+	case GDK_SCROLL_DOWN:
+		adj.set_value (adj.get_value() + adj.get_page_size()/10.0);
+		break;
+	default:
+		return false;
+	}
+
+	return true;
+}
+
 bool
 Scroomer::on_button_press_event (GdkEventButton* ev)
 {
@@ -267,12 +284,6 @@ Scroomer::on_button_release_event (GdkEventButton* ev)
 	return true;
 }
 
-bool
-Scroomer::on_scroll_event (GdkEventScroll*)
-{
-	return true;
-}
-
 void
 Scroomer::on_size_allocate (Allocation& a)
 {