diff --git a/src/engine_gui.cpp b/src/engine_gui.cpp
index e219a45ff2..5b624ef303 100644
--- a/src/engine_gui.cpp
+++ b/src/engine_gui.cpp
@@ -84,7 +84,7 @@ struct EnginePreviewWindow : Window {
 
 		/* Get size of engine sprite, on loan from depot_gui.cpp */
 		EngineID engine = static_cast<EngineID>(this->window_number);
-		EngineImageType image_type = EIT_PURCHASE;
+		EngineImageType image_type = EIT_PREVIEW;
 		uint x, y;
 		int x_offs, y_offs;