diff --git a/b2g/confvars.sh b/b2g/confvars.sh
index 16ecbc1fac1..97c0439e845 100644
--- a/b2g/confvars.sh
+++ b/b2g/confvars.sh
@@ -57,7 +57,7 @@ MOZ_PLACES=
 MOZ_B2G=1
 
 if test "$OS_TARGET" = "Android"; then
-MOZ_NUWA_PROCESS=
+MOZ_NUWA_PROCESS=1
 fi
 MOZ_FOLD_LIBS=1
 
diff --git a/dom/ipc/PreallocatedProcessManager.cpp b/dom/ipc/PreallocatedProcessManager.cpp
index 3aa9db9f098..d9f500b6d08 100644
--- a/dom/ipc/PreallocatedProcessManager.cpp
+++ b/dom/ipc/PreallocatedProcessManager.cpp
@@ -309,7 +309,7 @@ PreallocatedProcessManagerImpl::PublishSpareProcess(ContentParent* aContent)
       do_GetService("@mozilla.org/parentprocessmessagemanager;1");
     nsresult rv = ppmm->BroadcastAsyncMessage(
       NS_LITERAL_STRING("TEST-ONLY:nuwa-add-new-process"),
-      JSVAL_NULL, JSVAL_NULL, cx, 1);
+      JS::NullHandleValue, JS::NullHandleValue, cx, 1);
   }
 
   if (!mNuwaForkWaitTasks.IsEmpty()) {
@@ -362,7 +362,7 @@ PreallocatedProcessManagerImpl::OnNuwaReady()
       do_GetService("@mozilla.org/parentprocessmessagemanager;1");
     nsresult rv = ppmm->BroadcastAsyncMessage(
       NS_LITERAL_STRING("TEST-ONLY:nuwa-ready"),
-      JSVAL_NULL, JSVAL_NULL, cx, 1);
+      JS::NullHandleValue, JS::NullHandleValue, cx, 1);
   }
   NuwaFork();
 }
diff --git a/dom/ipc/tests/mochitest.ini b/dom/ipc/tests/mochitest.ini
index 1bdf4180a89..2f594dd8c01 100644
--- a/dom/ipc/tests/mochitest.ini
+++ b/dom/ipc/tests/mochitest.ini
@@ -1,2 +1,2 @@
 [test_NuwaProcessCreation.html]
-skip-if = true # re-enable when nuwa is enabled.
+run-if = toolkit == 'gonk'