diff --git a/adminer/drivers/sqlite.inc.php b/adminer/drivers/sqlite.inc.php
index 5d64a3be..a4352150 100644
--- a/adminer/drivers/sqlite.inc.php
+++ b/adminer/drivers/sqlite.inc.php
@@ -393,7 +393,7 @@ if (isset($_GET["sqlite"])) {
 		}
 		try {
 			$link = new SqliteDb($db);
-		} catch (Exception $ex) {
+		} catch (\Exception $ex) {
 			$connection->error = $ex->getMessage();
 			return false;
 		}
diff --git a/adminer/include/pdo.inc.php b/adminer/include/pdo.inc.php
index 51171cc1..6cda3ae0 100644
--- a/adminer/include/pdo.inc.php
+++ b/adminer/include/pdo.inc.php
@@ -13,7 +13,7 @@ if (extension_loaded('pdo')) {
 			$options[\PDO::ATTR_STATEMENT_CLASS] = array('Adminer\PdoDbStatement');
 			try {
 				$this->pdo = new \PDO($dsn, $username, $password, $options);
-			} catch (Exception $ex) {
+			} catch (\Exception $ex) {
 				auth_error(h($ex->getMessage()));
 			}
 			$this->server_info = @$this->pdo->getAttribute(\PDO::ATTR_SERVER_VERSION);
diff --git a/plugins/drivers/mongo.php b/plugins/drivers/mongo.php
index ac29c226..8d9d8d8d 100644
--- a/plugins/drivers/mongo.php
+++ b/plugins/drivers/mongo.php
@@ -25,7 +25,7 @@ if (isset($_GET["mongo"])) {
 			function executeDbCommand($db, $command) {
 				try {
 					return $this->_link->executeCommand($db, new \MongoDB\Driver\Command($command));
-				} catch (Exception $e) {
+				} catch (\Exception $e) {
 					$this->error = $e->getMessage();
 					return array();
 				}
@@ -36,7 +36,7 @@ if (isset($_GET["mongo"])) {
 					$results = $this->_link->executeBulkWrite($namespace, $bulk);
 					$this->affected_rows = $results->$counter();
 					return true;
-				} catch (Exception $e) {
+				} catch (\Exception $e) {
 					$this->error = $e->getMessage();
 					return false;
 				}
@@ -331,7 +331,7 @@ if (isset($_GET["mongo"])) {
 			$skip = $page * $limit;
 			try {
 				return new Result($this->conn->_link->executeQuery($this->conn->_db_name . ".$table", new \MongoDB\Driver\Query($where, array('projection' => $select, 'limit' => $limit, 'skip' => $skip, 'sort' => $sort))));
-			} catch (Exception $e) {
+			} catch (\Exception $e) {
 				$this->conn->error = $e->getMessage();
 				return false;
 			}