diff --git a/src/Dibi/Drivers/PdoDriver.php b/src/Dibi/Drivers/PdoDriver.php
index 6dd9fdc5..4bb5c1e4 100644
--- a/src/Dibi/Drivers/PdoDriver.php
+++ b/src/Dibi/Drivers/PdoDriver.php
@@ -56,9 +56,15 @@ class PdoDriver implements Dibi\Driver
 		if ($config['resource'] instanceof PDO) {
 			$this->connection = $config['resource'];
 			unset($config['resource'], $config['pdo']);
+
+			if ($this->connection->getAttribute(PDO::ATTR_ERRMODE) !== PDO::ERRMODE_SILENT) {
+				throw new Dibi\DriverException('PDO connection in exception or warning error mode is not supported.');
+			}
+
 		} else {
 			try {
 				$this->connection = new PDO($config['dsn'], $config['username'], $config['password'], $config['options']);
+				$this->connection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_SILENT);
 			} catch (\PDOException $e) {
 				if ($e->getMessage() === 'could not find driver') {
 					throw new Dibi\NotSupportedException('PHP extension for PDO is not loaded.');
@@ -67,10 +73,6 @@ class PdoDriver implements Dibi\Driver
 			}
 		}
 
-		if ($this->connection->getAttribute(PDO::ATTR_ERRMODE) !== PDO::ERRMODE_SILENT) {
-			throw new Dibi\DriverException('PDO connection in exception or warning error mode is not supported.');
-		}
-
 		$this->driverName = $this->connection->getAttribute(PDO::ATTR_DRIVER_NAME);
 		$this->serverVersion = (string) ($config['version'] ?? @$this->connection->getAttribute(PDO::ATTR_SERVER_VERSION)); // @ - may be not supported
 	}
diff --git a/tests/dibi/PdoDriver.providedConnection.phpt b/tests/dibi/PdoDriver.providedConnection.phpt
index f9364ee3..81d999c2 100644
--- a/tests/dibi/PdoDriver.providedConnection.phpt
+++ b/tests/dibi/PdoDriver.providedConnection.phpt
@@ -32,8 +32,3 @@ Assert::exception(function () {
 test('PDO error mode: explicitly set silent', function () {
 	buildPdoDriver(PDO::ERRMODE_SILENT);
 });
-
-
-test('PDO error mode: implicitly set silent', function () {
-	buildPdoDriver(null);
-});