diff --git a/lib/Doctrine/ORM/AbstractQuery.php b/lib/Doctrine/ORM/AbstractQuery.php
index 0e66e147f..25a284ceb 100644
--- a/lib/Doctrine/ORM/AbstractQuery.php
+++ b/lib/Doctrine/ORM/AbstractQuery.php
@@ -100,7 +100,7 @@ abstract class AbstractQuery
     /**
      * The hydration mode.
      *
-     * @var integer
+     * @var string|int
      */
     protected $_hydrationMode = self::HYDRATE_OBJECT;
 
@@ -690,8 +690,8 @@ abstract class AbstractQuery
     /**
      * Defines the processing mode to be used during hydration / result set transformation.
      *
-     * @param integer $hydrationMode Doctrine processing mode to be used during hydration process.
-     *                               One of the Query::HYDRATE_* constants.
+     * @param string|int $hydrationMode Doctrine processing mode to be used during hydration process.
+     *                                  One of the Query::HYDRATE_* constants.
      *
      * @return static This query instance.
      */
@@ -705,7 +705,7 @@ abstract class AbstractQuery
     /**
      * Gets the hydration mode currently used by the query.
      *
-     * @return integer
+     * @return string|int
      */
     public function getHydrationMode()
     {
@@ -717,7 +717,7 @@ abstract class AbstractQuery
      *
      * Alias for execute(null, $hydrationMode = HYDRATE_OBJECT).
      *
-     * @param int $hydrationMode
+     * @param string|int $hydrationMode
      *
      * @return mixed
      */
@@ -753,7 +753,7 @@ abstract class AbstractQuery
     /**
      * Get exactly one result or null.
      *
-     * @param int $hydrationMode
+     * @param string|int $hydrationMode
      *
      * @return mixed
      *
@@ -791,7 +791,7 @@ abstract class AbstractQuery
      * If the result is not unique, a NonUniqueResultException is thrown.
      * If there is no result, a NoResultException is thrown.
      *
-     * @param integer $hydrationMode
+     * @param string|int $hydrationMode
      *
      * @return mixed
      *
@@ -885,7 +885,7 @@ abstract class AbstractQuery
      * iterate over the result.
      *
      * @param ArrayCollection|array|null $parameters    The query parameters.
-     * @param integer|null               $hydrationMode The hydration mode to use.
+     * @param string|int|null            $hydrationMode The hydration mode to use.
      *
      * @return \Doctrine\ORM\Internal\Hydration\IterableResult
      */
@@ -909,7 +909,7 @@ abstract class AbstractQuery
      * Executes the query.
      *
      * @param ArrayCollection|array|null $parameters Query parameters.
-     * @param integer|null               $hydrationMode Processing mode to be used during the hydration process.
+     * @param string|int|null            $hydrationMode Processing mode to be used during the hydration process.
      *
      * @return mixed
      */
@@ -926,7 +926,7 @@ abstract class AbstractQuery
      * Execute query ignoring second level cache.
      *
      * @param ArrayCollection|array|null $parameters
-     * @param integer|null               $hydrationMode
+     * @param string|int|null            $hydrationMode
      *
      * @return mixed
      */
@@ -984,7 +984,7 @@ abstract class AbstractQuery
      * Load from second level cache or executes the query and put into cache.
      *
      * @param ArrayCollection|array|null $parameters
-     * @param integer|null               $hydrationMode
+     * @param string|int|null            $hydrationMode
      *
      * @return mixed
      */
diff --git a/lib/Doctrine/ORM/EntityManagerInterface.php b/lib/Doctrine/ORM/EntityManagerInterface.php
index c61e6973c..a423432a1 100644
--- a/lib/Doctrine/ORM/EntityManagerInterface.php
+++ b/lib/Doctrine/ORM/EntityManagerInterface.php
@@ -249,7 +249,7 @@ interface EntityManagerInterface extends ObjectManager
     *
     * @deprecated
     *
-    * @param int $hydrationMode
+    * @param string|int $hydrationMode
     *
     * @return \Doctrine\ORM\Internal\Hydration\AbstractHydrator
     */
@@ -258,7 +258,7 @@ interface EntityManagerInterface extends ObjectManager
     /**
      * Create a new instance for the given hydration mode.
      *
-     * @param int $hydrationMode
+     * @param string|int $hydrationMode
      *
      * @return \Doctrine\ORM\Internal\Hydration\AbstractHydrator
      *
diff --git a/lib/Doctrine/ORM/Query.php b/lib/Doctrine/ORM/Query.php
index 041ebeebb..525aa7a50 100644
--- a/lib/Doctrine/ORM/Query.php
+++ b/lib/Doctrine/ORM/Query.php
@@ -656,7 +656,7 @@ final class Query extends AbstractQuery
      * iterated over the result.
      *
      * @param ArrayCollection|array|null $parameters    The query parameters.
-     * @param integer                    $hydrationMode The hydration mode to use.
+     * @param string|int                 $hydrationMode The hydration mode to use.
      *
      * @return \Doctrine\ORM\Internal\Hydration\IterableResult
      */