diff --git a/vlib/pool/connection_test.v b/vlib/pool/connection_test.v
index 44e79dd5c2..41c54e037a 100644
--- a/vlib/pool/connection_test.v
+++ b/vlib/pool/connection_test.v
@@ -195,7 +195,7 @@ fn test_concurrent_access() {
 	defer {
 		p.close()
 	}
-	mut wg := &sync.WaitGroup{}
+	mut wg := sync.new_waitgroup()
 
 	for _ in 0 .. 20 {
 		wg.add(1)