diff --git a/tests/test_demand_data.cpp b/tests/test_demand_data.cpp
index 74cbf7a..b9f8275 100644
--- a/tests/test_demand_data.cpp
+++ b/tests/test_demand_data.cpp
@@ -67,7 +67,7 @@ BOOST_AUTO_TEST_CASE (test_create_destroy)
 BOOST_AUTO_TEST_CASE(test_get_size)
 {
 	size_t size = get_demand_data_size();
-	BOOST_CHECK(size == 8);
+	BOOST_CHECK(size == sizeof(demand_data_t *));
 }