diff --git a/cake/libs/model/datasources/dbo_source.php b/cake/libs/model/datasources/dbo_source.php
index ae8df2cbe..444f0244a 100644
--- a/cake/libs/model/datasources/dbo_source.php
+++ b/cake/libs/model/datasources/dbo_source.php
@@ -1683,7 +1683,9 @@ class DboSource extends DataSource {
 
 		if ($count >= 1 && !in_array($fields[0], array('*', 'COUNT(*)'))) {
 			for ($i = 0; $i < $count; $i++) {
-				if (preg_match('/^\(.*\)\s' . $this->alias . '.*/i', $fields[$i])){
+				if (is_object($fields[$i]) && isset($fields[$i]->type) && $fields[$i]->type === 'expression') {
+					$fields[$i] = $fields[$i]->value;
+				} elseif (preg_match('/^\(.*\)\s' . $this->alias . '.*/i', $fields[$i])){
 					continue;
 				} elseif (!preg_match('/^.+\\(.*\\)/', $fields[$i])) {
 					$prepend = '';
diff --git a/cake/tests/cases/libs/model/datasources/dbo_source.test.php b/cake/tests/cases/libs/model/datasources/dbo_source.test.php
index 00fe40866..3dbe92991 100644
--- a/cake/tests/cases/libs/model/datasources/dbo_source.test.php
+++ b/cake/tests/cases/libs/model/datasources/dbo_source.test.php
@@ -2781,6 +2781,20 @@ class DboSourceTest extends CakeTestCase {
 		);
 		$this->assertEqual($result, $expected);
 	}
+/**
+ * test that fields() will accept objects made from DboSource::expression
+ *
+ * @return void
+ */
+	function testFieldsWithExpression() {
+		$expression =& $this->testDb->expression("CASE Sample.id WHEN 1 THEN 'Id One' ELSE 'Other Id' END AS case_col");
+		$result = $this->testDb->fields($this->Model, null, array("id", $expression));
+		$expected = array(
+			'`TestModel`.`id`',
+			"CASE Sample.id WHEN 1 THEN 'Id One' ELSE 'Other Id' END AS case_col"
+		);
+		$this->assertEqual($result, $expected);
+	}
 /**
  * testMergeAssociations method
  *