diff --git a/modules/core/lib/Auth/Process/TargetedID.php b/modules/core/lib/Auth/Process/TargetedID.php
index 939ef9efc9dbf1c16a2ce642c46295836d9b3053..98bc8910f6da3bf46b103cb7583ac4c70a1124ed 100644
--- a/modules/core/lib/Auth/Process/TargetedID.php
+++ b/modules/core/lib/Auth/Process/TargetedID.php
@@ -97,7 +97,7 @@ class sspmod_core_Auth_Process_TargetedID extends SimpleSAML_Auth_ProcessingFilt
 					'\', which is needed to generate the targeted ID.');
 			}
 
-			$userID = $state['Attributes'][$this->attribute];
+			$userID = $state['Attributes'][$this->attribute][0];
 		}