diff --git a/lib/SimpleSAML/Store/Redis.php b/lib/SimpleSAML/Store/Redis.php
index f7fc0fa847298dfc807e78b853aedb9581b4f50c..25162e2249df1628a406d70138e440f19f2059f3 100644
--- a/lib/SimpleSAML/Store/Redis.php
+++ b/lib/SimpleSAML/Store/Redis.php
@@ -34,7 +34,7 @@ class Redis extends Store
                 array(
                     'scheme' => 'tcp',
                     'host' => $host,
-                    'post' => $port,
+                    'port' => $port,
                 ),
                 array(
                     'prefix' => $prefix,