diff -r c5e34981deac -r 4a57e6e76d5f src/pyams_portal/portlets/html/zmi/__init__.py
--- a/src/pyams_portal/portlets/html/zmi/__init__.py	Tue Aug 28 15:42:39 2018 +0200
+++ b/src/pyams_portal/portlets/html/zmi/__init__.py	Wed Aug 29 16:55:28 2018 +0200
@@ -61,7 +61,7 @@
 
 
 @adapter_config(context=(Interface, IPyAMSLayer, Interface, IRawPortletSettings), provides=IPortletPreviewer)
-@template_config(template='preview.pt', layer=IPyAMSLayer)
+@template_config(template='raw-preview.pt', layer=IPyAMSLayer)
 class RawPortletPreviewer(PortletPreviewer):
     """Raw HTML portlet previewer"""