diff --git a/querydsl-collections/src/test/java/com/mysema/query/DomainTest.java b/querydsl-collections/src/test/java/com/mysema/query/DomainTest.java
index 2d2c8235f..6f72230b2 100644
--- a/querydsl-collections/src/test/java/com/mysema/query/DomainTest.java
+++ b/querydsl-collections/src/test/java/com/mysema/query/DomainTest.java
@@ -29,6 +29,14 @@ public class DomainTest {
         it = new QItemType("it");
     }
     
+    @Domain
+    public interface InterfaceType{
+        InterfaceType getRelation();
+        List<InterfaceType> getRelation2();
+        List<? extends InterfaceType> getRelation3();
+        int getRelation4();        
+    }
+    
     @Domain
     public static class SimpleTypes{
         transient int test;