diff --git a/src/toolbar_gui.cpp b/src/toolbar_gui.cpp
--- a/src/toolbar_gui.cpp
+++ b/src/toolbar_gui.cpp
@@ -1152,7 +1152,6 @@ static CallBackFunction ToolbarScenDateP
 {
 	SetDParam(0, _settings_game.game_creation.starting_year);
 	ShowQueryString(STR_JUST_INT, STR_MAPGEN_START_DATE_QUERY_CAPT, 8, w, CS_NUMERAL, QSF_ENABLE_DEFAULT);
-	_left_button_clicked = false;
 	return CBF_NONE;
 }