diff --git a/src/engine_gui.cpp b/src/engine_gui.cpp
index 899543c189..86d73918c8 100644
--- a/src/engine_gui.cpp
+++ b/src/engine_gui.cpp
@@ -81,7 +81,7 @@ struct EnginePreviewWindow : Window {
 
 		/* Get size of engine sprite, on loan from depot_gui.cpp */
 		EngineID engine = this->window_number;
-		EngineImageType image_type = EIT_PURCHASE;
+		EngineImageType image_type = EIT_PREVIEW;
 		uint x, y;
 		int x_offs, y_offs;