diff --git a/hibernate-entitymanager/src/main/java/org/hibernate/jpa/criteria/CriteriaUpdateImpl.java b/hibernate-entitymanager/src/main/java/org/hibernate/jpa/criteria/CriteriaUpdateImpl.java
index 4e67d7161b..3fd79d348b 100644
--- a/hibernate-entitymanager/src/main/java/org/hibernate/jpa/criteria/CriteriaUpdateImpl.java
+++ b/hibernate-entitymanager/src/main/java/org/hibernate/jpa/criteria/CriteriaUpdateImpl.java
@@ -142,12 +142,12 @@ public class CriteriaUpdateImpl<T> extends AbstractManipulationCriteriaQuery<T>
 		jpaql.append( " set " );
 		boolean first = true;
 		for ( Assignment assignment : assignments ) {
-			jpaql.append( assignment.attributePath.render( renderingContext ) )
-					.append( " = " )
-					.append( assignment.value.render( renderingContext ) );
 			if ( ! first ) {
 				jpaql.append( ", " );
 			}
+			jpaql.append( assignment.attributePath.render( renderingContext ) )
+					.append( " = " )
+					.append( assignment.value.render( renderingContext ) );
 			first = false;
 		}
 	}
diff --git a/hibernate-entitymanager/src/test/java/org/hibernate/jpa/test/criteria/ManipulationCriteriaTest.java b/hibernate-entitymanager/src/test/java/org/hibernate/jpa/test/criteria/ManipulationCriteriaTest.java
index 3fc0b9c8be..2897693161 100644
--- a/hibernate-entitymanager/src/test/java/org/hibernate/jpa/test/criteria/ManipulationCriteriaTest.java
+++ b/hibernate-entitymanager/src/test/java/org/hibernate/jpa/test/criteria/ManipulationCriteriaTest.java
@@ -39,6 +39,7 @@ import org.hibernate.jpa.test.metamodel.AbstractMetamodelSpecificTest;
 import org.hibernate.jpa.test.metamodel.Customer;
 import org.hibernate.jpa.test.metamodel.Customer_;
 import org.hibernate.testing.SkipForDialect;
+import org.hibernate.testing.TestForIssue;
 import org.junit.Test;
 
 /**
@@ -116,6 +117,24 @@ public class ManipulationCriteriaTest extends AbstractMetamodelSpecificTest {
 		em.getTransaction().rollback();
 		em.close();
 	}
+	
+	@Test
+	@TestForIssue(jiraKey = "HHH-8434")
+	public void basicMultipleAssignments() {
+		EntityManager em = getOrCreateEntityManager();
+		em.getTransaction().begin();
+
+		CriteriaBuilder builder = em.getCriteriaBuilder();
+
+		CriteriaUpdate<Customer> updateCriteria = builder.createCriteriaUpdate( Customer.class );
+		updateCriteria.from( Customer.class );
+		updateCriteria.set( Customer_.name, "Bob" );
+		updateCriteria.set( Customer_.age, 99 );
+		em.createQuery( updateCriteria ).executeUpdate();
+
+		em.getTransaction().commit();
+		em.close();
+	}
 
 	@Test
 	public void testJoinsAndFetchesDisallowed() {