diff --git a/xos/core/views/hpc_config.py b/xos/core/views/hpc_config.py
index e24c3c4..e2dbe67 100644
--- a/xos/core/views/hpc_config.py
+++ b/xos/core/views/hpc_config.py
@@ -9,6 +9,11 @@
 import time
 
 def HpcConfig(request):
+    hpcSlice=None
+    cmiSlice=None
+    redirSlice=None
+    demuxSlice=None
+
     hpc = HpcService.objects.all()
     if (not hpc):
         return HttpResponse("# Error: no HPC service")