diff --git a/source/dub/recipe/json.d b/source/dub/recipe/json.d
index 248ed58..8bba635 100644
--- a/source/dub/recipe/json.d
+++ b/source/dub/recipe/json.d
@@ -104,6 +104,7 @@
 		ret.buildTypes = types;
 	}
 	if (!recipe.ddoxFilterArgs.empty) ret["-ddoxFilterArgs"] = recipe.ddoxFilterArgs.serializeToJson();
+	if (!recipe.ddoxTool.empty) ret["-ddoxTool"] = recipe.ddoxTool;
 	return ret;
 }