diff --git a/cas-mfa-java/src/main/java/net/unicon/cas/mfa/web/flow/view/MultifactorLoginViewPrincipalAttributeGreeter.java b/cas-mfa-java/src/main/java/net/unicon/cas/mfa/web/flow/view/MultifactorLoginViewPrincipalAttributeGreeter.java
index 190a8c3..bc050bd 100644
--- a/cas-mfa-java/src/main/java/net/unicon/cas/mfa/web/flow/view/MultifactorLoginViewPrincipalAttributeGreeter.java
+++ b/cas-mfa-java/src/main/java/net/unicon/cas/mfa/web/flow/view/MultifactorLoginViewPrincipalAttributeGreeter.java
@@ -9,6 +9,8 @@
 import org.springframework.binding.message.MessageContext;
 import org.springframework.binding.message.MessageResolver;
 
+import java.util.Collection;
+
 /**
  * Greets the principal by a configurable principal attribute and falls back
  * to the principal id, if none is found.
@@ -36,7 +38,24 @@ public MultifactorLoginViewPrincipalAttributeGreeter(final String greetingAttrNa
     public String getPersonToGreet(final Principal p, final MessageContext messageContext) {
 
         String personId = p.getId();
-        final String greetingPersonId = (String) p.getAttributes().get(this.greetingAttributeName);
+        final Object attrValue = p.getAttributes().get(this.greetingAttributeName);
+
+        if (attrValue == null) {
+            LOGGER.warn("No attribute value could be found for [{}]", this.greetingAttributeName);
+            return p.getId();
+        }
+
+        String greetingPersonId = attrValue.toString();
+        if (attrValue instanceof Collection) {
+            final Collection col =((Collection) attrValue);
+            if (!col.isEmpty()) {
+                greetingPersonId = col.iterator().next().toString();
+                LOGGER.warn("Found multiple attribute values [{}] for [{}] to greet. Picked [{}]",
+                        attrValue, this.greetingAttributeName,
+                        greetingPersonId);
+            }
+        }
+
         if (!StringUtils.isBlank(greetingPersonId)) {
             personId = greetingPersonId;
         }
@@ -46,13 +65,12 @@ public String getPersonToGreet(final Principal p, final MessageContext messageCo
 
         final Message[] messages = messageContext.getMessagesBySource(CODE);
         if (messages == null || messages.length == 0) {
-            LOGGER.warn("The greeting message for pricipal [{}] could not be resolved by the "
+            LOGGER.warn("The greeting message for principal [{}] could not be resolved by the "
                     + "code [{}] in any of the configured message resource bundles. Falling back to principal id [{}]",
                     p, CODE, p.getId());
             return p.getId();
         }
-        final String msgToReturn = messages[0].getText();
-        return msgToReturn;
+        return messages[0].getText();
     }
 
 }
diff --git a/cas-mfa-web/src/test/java/net/unicon/cas/mfa/web/flow/view/MultifactorLoginViewPrincipalAttributeGreeterTests.java b/cas-mfa-web/src/test/java/net/unicon/cas/mfa/web/flow/view/MultifactorLoginViewPrincipalAttributeGreeterTests.java
index daa537c..15cd8f4 100644
--- a/cas-mfa-web/src/test/java/net/unicon/cas/mfa/web/flow/view/MultifactorLoginViewPrincipalAttributeGreeterTests.java
+++ b/cas-mfa-web/src/test/java/net/unicon/cas/mfa/web/flow/view/MultifactorLoginViewPrincipalAttributeGreeterTests.java
@@ -1,23 +1,22 @@
 package net.unicon.cas.mfa.web.flow.view;
 
-import static org.junit.Assert.*;
-import static org.mockito.Mockito.*;
-
-import java.util.HashMap;
-import java.util.Map;
-
 import org.jasig.cas.authentication.principal.Principal;
 import org.jasig.cas.authentication.principal.SimplePrincipal;
 import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.junit.runners.JUnit4;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 import org.springframework.binding.message.Message;
 import org.springframework.binding.message.MessageContext;
 import org.springframework.binding.message.Severity;
 
-@RunWith(JUnit4.class)
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.any;
+import static org.mockito.Mockito.when;
+
 public class MultifactorLoginViewPrincipalAttributeGreeterTests {
 
     @Mock
@@ -37,6 +36,22 @@ public MultifactorLoginViewPrincipalAttributeGreeterTests() {
         when(messageContext.getMessagesBySource(any(Object.class))).thenReturn(values);
     }
 
+    @Test
+    public void testValidPrincipalMultivaluedAttributeToGreet() {
+        final Map map = new HashMap();
+        map.put("firstName", Arrays.asList("cas", "sso"));
+        map.put("lastName", "user");
+
+        final Principal p = new SimplePrincipal("userid", map);
+
+        final MultifactorLoginViewPrincipalAttributeGreeter greeter = new MultifactorLoginViewPrincipalAttributeGreeter(
+                "firstName");
+
+        configureMessageContextForPrincipal("cas");
+        final String value = greeter.getPersonToGreet(p, this.messageContext);
+        assertTrue(value.contains("cas"));
+    }
+
     @Test
     public void testValidPrincipalAttributeToGreet() {
         final Map map = new HashMap();