diff --git a/src/taskstub.js.c b/src/taskstub.js.c
index c0d67092..b86055f6 100644
--- a/src/taskstub.js.c
+++ b/src/taskstub.js.c
@@ -321,6 +321,7 @@ static JSValue _taskstub_setImports(JSContext* context, JSValueConst this_val, i
 	size_t size;
 	tf_serialize_store(tf_task_get(context), stub, &buffer, &size, argv[0]);
 	tf_packetstream_send(stub->_stream, kSetImports, (char*)buffer, size);
+	free(buffer);
 	return JS_UNDEFINED;
 }
 
@@ -331,6 +332,7 @@ static JSValue _taskstub_setRequires(JSContext* context, JSValueConst this_val,
 	size_t size;
 	tf_serialize_store(tf_task_get(context), stub, &buffer, &size, argv[0]);
 	tf_packetstream_send(stub->_stream, kSetRequires, (char*)buffer, size);
+	free(buffer);
 	return JS_UNDEFINED;
 }