diff --git a/tools/xm-test/tests/block-create/11_block_attach_shared_dom0.py b/tools/xm-test/tests/block-create/11_block_attach_shared_dom0.py
index adf7ca5ea5..f2e5ca7d64 100644
--- a/tools/xm-test/tests/block-create/11_block_attach_shared_dom0.py
+++ b/tools/xm-test/tests/block-create/11_block_attach_shared_dom0.py
@@ -34,3 +34,5 @@ try:
     FAIL("Bug #331: Started a DomU with write access to a rw mounted block device")
 except DomainError, e:
     s, o = traceCommand("umount mnt")
+
+domain.destroy()
diff --git a/tools/xm-test/tests/block-create/12_block_attach_shared_domU.py b/tools/xm-test/tests/block-create/12_block_attach_shared_domU.py
index c0ce5bee8a..07cf56c373 100644
--- a/tools/xm-test/tests/block-create/12_block_attach_shared_domU.py
+++ b/tools/xm-test/tests/block-create/12_block_attach_shared_domU.py
@@ -20,8 +20,11 @@ except DomainError, e:
     FAIL("Unable to start domain")
 
 try:
-    dom2.start()
-    dom1.destroy()
-    FAIL("Bug #331: Started a DomU with write access to an in-use block device")
-except DomainError, e:
+    try:
+        dom2.start()
+        FAIL("Bug #331: Started a DomU with write access to an in-use block device")
+    except DomainError, e:
+        pass
+finally:
     dom1.destroy()
+    dom2.destroy()