diff --git a/src/frontends/qt4/GuiSelection.cpp b/src/frontends/qt4/GuiSelection.cpp
index bc3022b652..d12ee00829 100644
--- a/src/frontends/qt4/GuiSelection.cpp
+++ b/src/frontends/qt4/GuiSelection.cpp
@@ -100,6 +100,8 @@ bool GuiSelection::empty() const
 	if (!selection_supported_)
 		return true;
 
+	LYXERR(Debug::ACTION, "GuiSelection::empty: " << text_selection_empty_);
+
 	return text_selection_empty_;
 }