diff --git a/system/libraries/Session/drivers/Session_cookie.php b/system/libraries/Session/drivers/Session_cookie.php
index fb62c7e..5bb1f7a 100755
--- a/system/libraries/Session/drivers/Session_cookie.php
+++ b/system/libraries/Session/drivers/Session_cookie.php
@@ -405,7 +405,7 @@
 		}
 
 		// Is the session current?
-		if (($session['last_activity'] + $this->sess_expiration) < $this->now)
+		if (($session['last_activity'] + $this->sess_expiration) < $this->now OR $session['last_activity'] > $this->now)
 		{
 			$this->sess_destroy();
 			return FALSE;
diff --git a/system/libraries/Session/drivers/Session_native.php b/system/libraries/Session/drivers/Session_native.php
index 8d5e515..6529d4c 100755
--- a/system/libraries/Session/drivers/Session_native.php
+++ b/system/libraries/Session/drivers/Session_native.php
@@ -107,7 +107,7 @@
 		// Check session expiration, ip, and agent
 		$now = time();
 		$destroy = FALSE;
-		if (isset($_SESSION['last_activity']) && ($_SESSION['last_activity'] + $expire) < $now)
+		if (isset($_SESSION['last_activity']) && (($_SESSION['last_activity'] + $expire) < $now OR $_SESSION['last_activity'] > $now))
 		{
 			// Expired - destroy
 			$destroy = TRUE;