diff --git a/VERSION b/VERSION
index 048f136d..53c649a6 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-Version 2.8.2-stable+timestamp.2013.12.04.10.42.46
+Version 2.8.2-stable+timestamp.2013.12.04.19.34.45
diff --git a/gluon/contrib/spreadsheet.py b/gluon/contrib/spreadsheet.py
index 1ff05e73..7cca9c3d 100644
--- a/gluon/contrib/spreadsheet.py
+++ b/gluon/contrib/spreadsheet.py
@@ -858,8 +858,8 @@ class Sheet:
             sorted_headers = [TH(), ] + \
                 [TH(header[1]) for header in sorted(unsorted_headers)]
             table.insert(0, TR(*sorted_headers,
-                               **{_class: "%s_fieldnames" %
-                                  attributes["_class"]}))
+                                **{'_class': "%s_fieldnames" %
+                                   attributes["_class"]}))
         else:
             data = SCRIPT(""" // web2py Spreadsheets: no db data.""")