diff --git a/src/newgrf_gui.cpp b/src/newgrf_gui.cpp
--- a/src/newgrf_gui.cpp
+++ b/src/newgrf_gui.cpp
@@ -639,6 +639,7 @@ struct NewGRFWindow : public Window, New
 		this->FinishInitNested(desc, WN_GAME_OPTIONS_NEWGRF_STATE);
 
 		this->querystrings[WID_NS_FILTER] = &this->filter_editbox;
+		this->filter_editbox.cancel_button = QueryString::ACTION_CLEAR;
 		this->SetFocusedWidget(WID_NS_FILTER);
 
 		this->avails.SetListing(this->last_sorting);