diff --git a/openjpa-persistence/src/main/java/org/apache/openjpa/persistence/EntityManagerImpl.java b/openjpa-persistence/src/main/java/org/apache/openjpa/persistence/EntityManagerImpl.java
index e8df235cc..0e9a9fe92 100644
--- a/openjpa-persistence/src/main/java/org/apache/openjpa/persistence/EntityManagerImpl.java
+++ b/openjpa-persistence/src/main/java/org/apache/openjpa/persistence/EntityManagerImpl.java
@@ -977,11 +977,11 @@ public class EntityManagerImpl
     }
 
     public void close() {
+        assertOpen();
         _broker.close();
     }
 
     public boolean isOpen() {
-        assertOpen();
         return !_broker.isCloseInvoked();
     }