diff --git a/src/autoreplace_gui.cpp b/src/autoreplace_gui.cpp
--- a/src/autoreplace_gui.cpp
+++ b/src/autoreplace_gui.cpp
@@ -123,7 +123,7 @@ class ReplaceVehicleWindow : public Wind
 		byte side = draw_left ? 0 : 1;
 
 		GUIEngineList *list = &this->engines[side];
-		list->Clear();
+		list->clear();
 
 		const Engine *e;
 		FOR_ALL_ENGINES_OF_TYPE(e, type) {
@@ -170,7 +170,7 @@ class ReplaceVehicleWindow : public Wind
 			/* Either we got a request to rebuild the right engines list, or the left engines list selected a different engine */
 			if (this->sel_engine[0] == INVALID_ENGINE) {
 				/* Always empty the right engines list when nothing is selected in the left engines list */
-				this->engines[1].Clear();
+				this->engines[1].clear();
 				this->sel_engine[1] = INVALID_ENGINE;
 			} else {
 				if (this->reset_sel_engine && this->sel_engine[0] != INVALID_ENGINE) {