diff --git a/modules/ripple_app/misc/ripple_ProofOfWorkFactory.cpp b/modules/ripple_app/misc/ripple_ProofOfWorkFactory.cpp
index 260afdb141..0c0f596670 100644
--- a/modules/ripple_app/misc/ripple_ProofOfWorkFactory.cpp
+++ b/modules/ripple_app/misc/ripple_ProofOfWorkFactory.cpp
@@ -246,7 +246,7 @@ IProofOfWorkFactory* IProofOfWorkFactory::New ()
 class ProofOfWorkTests : public UnitTest
 {
 public:
-    ProofOfWorkTests () : UnitTest ("ProofOfWork", "ripple")
+    ProofOfWorkTests () : UnitTest ("ProofOfWork", "ripple", runManual)
     {
     }