diff --git a/cake/libs/model/datasources/dbo/dbo_mysql.php b/cake/libs/model/datasources/dbo/dbo_mysql.php
index 98e2cf5d2..1cdb1ddc1 100644
--- a/cake/libs/model/datasources/dbo/dbo_mysql.php
+++ b/cake/libs/model/datasources/dbo/dbo_mysql.php
@@ -148,14 +148,14 @@ class DboMysql extends DboSource {
 				$flags[PDO::MYSQL_ATTR_INIT_COMMAND] = 'SET NAMES ' . $config['encoding'];
 			}
 			$this->_connection = new PDO(
-				"mysql:{$config['host']};port={$config['port']};dbname={$config['database']}",
+				"mysql:host={$config['host']};port={$config['port']};dbname={$config['database']}",
 				$config['login'],
 				$config['password'],
 				$flags
 			);
 			$this->connected = true;
 		} catch (PDOException $e) {
-			$this->errors[] = $e->getMessage();
+			throw new MissingConnectionException(array('class' => $e->getMessage()));
 		}
 
 		$this->_useAlias = (bool)version_compare($this->getVersion(), "4.1", ">=");
diff --git a/cake/libs/model/datasources/dbo/dbo_postgres.php b/cake/libs/model/datasources/dbo/dbo_postgres.php
index 540ec0944..b6106d87b 100644
--- a/cake/libs/model/datasources/dbo/dbo_postgres.php
+++ b/cake/libs/model/datasources/dbo/dbo_postgres.php
@@ -130,7 +130,7 @@ class DboPostgres extends DboSource {
 				 $this->_execute('SET search_path TO ' . $config['schema']);
 			}
 		} catch (PDOException $e) {
-			$this->errors[] = $e->getMessage();
+			throw new MissingConnectionException(array('class' => $e->getMessage()));
 		}
 
 		return $this->connected;
diff --git a/cake/libs/model/datasources/dbo/dbo_sqlite.php b/cake/libs/model/datasources/dbo/dbo_sqlite.php
index c09b175e2..ae5c25f11 100644
--- a/cake/libs/model/datasources/dbo/dbo_sqlite.php
+++ b/cake/libs/model/datasources/dbo/dbo_sqlite.php
@@ -114,9 +114,8 @@ class DboSqlite extends DboSource {
 			$this->_connection = new PDO('sqlite:' . $config['database'], null, null, $flags);
 			$this->_connection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
 			$this->connected = true;
-		}
-		catch(PDOException $e) {
-			$this->errors[] = $e->getMessage();
+		} catch(PDOException $e) {
+			throw new MissingConnectionException(array('class' => $e->getMessage()));
 		}
 		return $this->connected;
 	}
diff --git a/cake/tests/cases/libs/model/datasources/dbo/dbo_mysql.test.php b/cake/tests/cases/libs/model/datasources/dbo/dbo_mysql.test.php
index 5ddce2069..ff462f86e 100644
--- a/cake/tests/cases/libs/model/datasources/dbo/dbo_mysql.test.php
+++ b/cake/tests/cases/libs/model/datasources/dbo/dbo_mysql.test.php
@@ -3367,4 +3367,18 @@ class DboMysqlTest extends CakeTestCase {
 		$this->assertTrue(Set::matches('/Comment[id=2]', $result));
 		$this->assertFalse(Set::matches('/Comment[id=10]', $result));
 	}
+
+/**
+ * @expectedException MissingConnectionException
+ * @return void
+ */
+	function testExceptionOnBrokenConnection() {
+		$dbo = new DboMysql(array(
+			'driver' => 'mysql',
+			'host' => 'imaginary_host',
+			'login' => 'mark',
+			'password' => 'inyurdatabase',
+			'database' => 'imaginary'
+		));
+	}
 }