diff --git a/src/frontends/qt4/GuiCompleter.cpp b/src/frontends/qt4/GuiCompleter.cpp
index cadca7994a..0c51b6da41 100644
--- a/src/frontends/qt4/GuiCompleter.cpp
+++ b/src/frontends/qt4/GuiCompleter.cpp
@@ -422,7 +422,8 @@ void GuiCompleter::updatePopup(Cursor & cur)
 void GuiCompleter::asyncUpdatePopup()
 {
 	Cursor cur = gui_->bufferView().cursor();
-	if (!cur.inset().completionSupported(cur)) {
+	if (!cur.inset().completionSupported(cur)
+		  || !cur.bv().paragraphVisible(cur)) {
 		popupVisible_ = false;
 		return;
 	}