diff --git a/adminer/include/pdo.inc.php b/adminer/include/pdo.inc.php
index b0f8b62b..d7da9caa 100644
--- a/adminer/include/pdo.inc.php
+++ b/adminer/include/pdo.inc.php
@@ -18,7 +18,7 @@ if (extension_loaded('pdo')) {
 			} catch (Exception $ex) {
 				auth_error(h($ex->getMessage()));
 			}
-			$this->pdo->setAttribute(3, 1); // 3 - PDO::ATTR_ERRMODE, 1 - PDO::ERRMODE_WARNING
+			$this->pdo->setAttribute(3, 0); // 3 - PDO::ATTR_ERRMODE, 0 - PDO::ERRMODE_SILENT
 			$this->pdo->setAttribute(13, array('Min_PDOStatement')); // 13 - PDO::ATTR_STATEMENT_CLASS
 			$this->server_info = @$this->pdo->getAttribute(4); // 4 - PDO::ATTR_SERVER_VERSION
 		}
diff --git a/changes.txt b/changes.txt
index 98eee223..34ad861b 100644
--- a/changes.txt
+++ b/changes.txt
@@ -1,5 +1,6 @@
 Adminer 4.8.1-dev:
 Fix more PHP 8 warnings (bug #781)
+Avoid PHP warnings with PDO drivers (bug #786, regression from 4.7.8)
 MySQL: Allow moving views to other DB and renaming DB with views (bug #783)
 PostgreSQL < 10 PDO: Avoid displaying GENERATED ALWAYS BY IDENTITY everywhere (bug #785, regression from 4.7.9)
 SQLite: Fix displayed types (bug #784, regression from 4.8.0)