diff --git a/test/machinarium/test_config.c b/test/machinarium/test_config.c
index 4655ec49..cb00049d 100644
--- a/test/machinarium/test_config.c
+++ b/test/machinarium/test_config.c
@@ -8,16 +8,18 @@ machinarium_test_config(void)
 {
 	machinarium_set_pool_size(1);
 	machinarium_init();
-	int count_machine = 0;
-	int count_coroutine = 0;
-	int count_coroutine_cache = 0;
-	int msg_allocated = 0;
-	int msg_cache_count = 0;
-	int msg_cache_size = 0;
+	uint64_t count_machine = 0;
+	uint64_t count_coroutine = 0;
+	uint64_t count_coroutine_cache = 0;
+	uint64_t msg_allocated = 0;
+	uint64_t msg_cache_count = 0;
+	uint64_t msg_cache_gc_count = 0;
+	uint64_t msg_cache_size = 0;
 	machinarium_stat(&count_machine, &count_coroutine,
 	                 &count_coroutine_cache,
 	                 &msg_allocated,
 	                 &msg_cache_count,
+	                 &msg_cache_gc_count,
 	                 &msg_cache_size);
 	test(count_machine == 1);
 	machinarium_free();
diff --git a/test/machinarium/test_stat.c b/test/machinarium/test_stat.c
index 8d2b84ef..7cfdc7a6 100644
--- a/test/machinarium/test_stat.c
+++ b/test/machinarium/test_stat.c
@@ -15,12 +15,13 @@ machinarium_test_stat(void)
 {
 	machinarium_init();
 
-	int count_machine = 0;
-	int count_coroutine = 0;
-	int count_coroutine_cache = 0;
-	int msg_allocated = 0;
-	int msg_cache_count = 0;
-	int msg_cache_size = 0;
+	uint64_t count_machine = 0;
+	uint64_t count_coroutine = 0;
+	uint64_t count_coroutine_cache = 0;
+	uint64_t msg_allocated = 0;
+	uint64_t msg_cache_count = 0;
+	uint64_t msg_cache_gc_count = 0;
+	uint64_t msg_cache_size = 0;
 
 
 	for (;;) {
@@ -28,6 +29,7 @@ machinarium_test_stat(void)
 		                 &count_coroutine_cache,
 		                 &msg_allocated,
 		                 &msg_cache_count,
+		                 &msg_cache_gc_count,
 		                 &msg_cache_size);
 		test(count_machine == 3); /* thread pool */
 		test(count_coroutine_cache == 0);
@@ -47,6 +49,7 @@ machinarium_test_stat(void)
 		                 &count_coroutine_cache,
 		                 &msg_allocated,
 		                 &msg_cache_count,
+		                 &msg_cache_gc_count,
 		                 &msg_cache_size);
 		test(count_machine == 3 + 1);
 		test(count_coroutine_cache == 0);
@@ -66,6 +69,7 @@ machinarium_test_stat(void)
 		                 &count_coroutine_cache,
 		                 &msg_allocated,
 		                 &msg_cache_count,
+		                 &msg_cache_gc_count,
 		                 &msg_cache_size);
 		test(count_machine == 3)
 		if (count_coroutine != 3) {