diff --git a/src/frontends/qt4/GuiWorkArea.cpp b/src/frontends/qt4/GuiWorkArea.cpp
index 67f86552d8..a29662091e 100644
--- a/src/frontends/qt4/GuiWorkArea.cpp
+++ b/src/frontends/qt4/GuiWorkArea.cpp
@@ -577,7 +577,6 @@ void GuiWorkArea::updateScrollbar()
 	verticalScrollBar()->setPageStep(scroll_.page_step);
 	verticalScrollBar()->setSingleStep(scroll_.single_step);
 	verticalScrollBar()->setSliderPosition(scroll_.position);
-	verticalScrollBar()->blockSignals(false);
 }