diff --git a/Doctrine/DBAL/Driver/PDODblib/Driver.php b/Doctrine/DBAL/Driver/PDODblib/Driver.php
index c1dc4d9..84ec575 100644
--- a/Doctrine/DBAL/Driver/PDODblib/Driver.php
+++ b/Doctrine/DBAL/Driver/PDODblib/Driver.php
@@ -75,7 +75,7 @@ public function getSchemaManager(\Doctrine\DBAL\Connection $conn) {
 		}
 
 		if (class_exists('\\Doctrine\\DBAL\\Schema\\MsSqlSchemaManager')) {
-			return new \Doctrine\DBAL\Schema\MsSqlSchemaManager($conn);
+			return new \PDODblibBundle\Doctrine\DBAL\Schema\PDODblibSchemaManager($conn);
 		}
 
 
@@ -89,4 +89,4 @@ public function getDatabase(\Doctrine\DBAL\Connection $conn) {
 		$params = $conn->getParams();
 		return $params['dbname'];
 	}
-}
\ No newline at end of file
+}
diff --git a/Doctrine/DBAL/Schema/PDODblibSchemaManager.php b/Doctrine/DBAL/Schema/PDODblibSchemaManager.php
new file mode 100644
index 0000000..d0642a9
--- /dev/null
+++ b/Doctrine/DBAL/Schema/PDODblibSchemaManager.php
@@ -0,0 +1,40 @@
+<?php
+/*
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information, see
+ * <http://www.doctrine-project.org>.
+ */
+
+namespace PDODblibBundle\Doctrine\DBAL\Schema;
+
+/**
+ * The PDO-based Dblib schema manager.
+ *
+ * @since 2.0
+ */
+class PDODblibSchemaManager extends \Doctrine\DBAL\Schema\MsSqlSchemaManager {
+
+    /**
+     * @override
+     */
+    protected function _getPortableTableColumnDefinition($tableColumn) {
+        // ensure upper case keys are there too...
+        foreach ($tableColumn as $key => $value) {
+            $tableColumn[strtoupper($key)] = $value;
+        }
+        return parent::_getPortableTableColumnDefinition($tableColumn);
+    }
+
+}