diff --git a/src/plugins/webreport/NarrativeWeb.py b/src/plugins/webreport/NarrativeWeb.py
index a9bcc7469..abcff2af3 100644
--- a/src/plugins/webreport/NarrativeWeb.py
+++ b/src/plugins/webreport/NarrativeWeb.py
@@ -405,7 +405,7 @@ class BasePage(object):
         # display attribute list
         trow.extend(
             Html("td", data or " ", class_ = "Column" + colclass,
-                inline = (colclass == "Type" or "Sources"))
+                inline = True if (colclass == "Type" or "Sources") else False)
             for (colclass, data) in [
                 ["Type",    str(attr.get_type()) ],
                 ["Value",   attr.get_value() ],