diff --git a/xen/arch/x86/mm/paging.c b/xen/arch/x86/mm/paging.c
index 308d44bce7..ae0340570d 100644
--- a/xen/arch/x86/mm/paging.c
+++ b/xen/arch/x86/mm/paging.c
@@ -443,8 +443,8 @@ static int paging_log_dirty_op(struct domain *d,
               d->arch.paging.preempt.op != sc->op )
     {
         paging_unlock(d);
-        ASSERT(!resuming);
-        domain_unpause(d);
+        if ( !resuming )
+            domain_unpause(d);
         return -EBUSY;
     }