d25e84
@@ -294,6 +294,11 @@
public class MappingMongoConverter extends AbstractMongoConverter implements App
 			Assert.isTrue(annotation != null, "The referenced property has to be mapped with @DBRef!");
 		}
 
+		// @see DATAMONGO-913
+		if (object instanceof LazyLoadingProxy) {
+			return ((LazyLoadingProxy) object).toDBRef();
+		}
+
 		return createDBRef(object, referingProperty);
 	}
 
