diff --git a/src/main/java/com/thesamet/gerrit/plugins/saml/SamlConfig.java b/src/main/java/com/thesamet/gerrit/plugins/saml/SamlConfig.java
index 9667849..ed0e05a 100644
--- a/src/main/java/com/thesamet/gerrit/plugins/saml/SamlConfig.java
+++ b/src/main/java/com/thesamet/gerrit/plugins/saml/SamlConfig.java
@@ -47,7 +47,7 @@
     userNameAttr = getGetStringWithDefault(cfg, "userNameAttr", "UserName");
     emailAddressAttr =
         getGetStringWithDefault(cfg, "emailAddressAttr", "EmailAddress");
-    maxAuthLifetimeAttr = cfg.getInt("saml", null, maxAuthLifetimeDefault);
+    maxAuthLifetimeAttr = cfg.getInt("saml", "maxAuthLifetime", maxAuthLifetimeDefault);
   }
 
   public String getMetadataPath() {