diff --git a/indra/lib/python/indra/base/llsd.py b/indra/lib/python/indra/base/llsd.py
index e23cdfa98603810b3af3addb820491e55ade8eb4..9e636ea423029c407f84fb1c7cb72159fadc1856 100644
--- a/indra/lib/python/indra/base/llsd.py
+++ b/indra/lib/python/indra/base/llsd.py
@@ -838,8 +838,9 @@ undef = LLSD(None)
 # register converters for stacked, if stacked is available
 try:
     from mulib import stacked
+    stacked.NoProducer()  # just to exercise stacked
 except:
-    print "Not able to import stacked, skipping registering llsd converters."
+    print "Couldn't import mulib.stacked, not registering LLSD converters"
 else:
     def llsd_convert_json(llsd_stuff, request):
         callback = request.get_header('callback')
diff --git a/indra/lib/python/indra/base/lluuid.py b/indra/lib/python/indra/base/lluuid.py
index ea60ae74c2afe4734d025ea99c9c6c2cc527db39..f302f8b0022fadd0ba99c52ef96600cf4db1f416 100644
--- a/indra/lib/python/indra/base/lluuid.py
+++ b/indra/lib/python/indra/base/lluuid.py
@@ -279,8 +279,9 @@ def uuid_bits_to_uuid(bits):
 
 try:
     from mulib import stacked
+    stacked.NoProducer()  # just to exercise stacked
 except:
-    print "Couldn't import mulib, not registering UUID converter"
+    print "Couldn't import mulib.stacked, not registering UUID converter"
 else:
     def convertUUID(uuid, req):
         req.write(str(uuid))