diff --git a/src/Swoole/PgSQL/ConnectionPool.php b/src/Swoole/PgSQL/ConnectionPool.php
index 4323ceb..ee914c9 100644
--- a/src/Swoole/PgSQL/ConnectionPool.php
+++ b/src/Swoole/PgSQL/ConnectionPool.php
@@ -135,7 +135,7 @@ private function make() : void
         if (! $this->map || ! $this->pool) {
             return;
         }
-        if ($this->pool->capacity === $this->capacity()) {
+        if ($this->pool->capacity <= $this->capacity()) {
             return;
         }
         try {