diff --git a/report_xls/report_xls.py b/report_xls/report_xls.py
index 92a0940b..2a6c092e 100644
--- a/report_xls/report_xls.py
+++ b/report_xls/report_xls.py
@@ -44,7 +44,7 @@ class AttrDict(dict):
         self.__dict__ = self
 
 
-class ReportXls(report_sxw):
+class report_xls(report_sxw):
 
     xls_types = {
         'bool': xlwt.Row.set_cell_boolean,
@@ -112,7 +112,7 @@ class ReportXls(report_sxw):
             # use model from 'data' when no ir.actions.report.xml entry
             self.table = data.get('model') or self.table
             return self.create_source_xls(cr, uid, ids, data, context)
-        return super(ReportXls, self).create(cr, uid, ids, data, context)
+        return super(report_xls, self).create(cr, uid, ids, data, context)
 
     def create_source_xls(self, cr, uid, ids, data, context=None):
         if not context:
@@ -206,7 +206,7 @@ class ReportXls(report_sxw):
                         c.append({'formula': s[5]})
                     else:
                         c.append({
-                            'write_cell_func': ReportXls.xls_types[c[3]]})
+                            'write_cell_func': report_xls.xls_types[c[3]]})
                     # Set custom cell style
                     if s_len > 6 and s[6] is not None:
                         c.append(s[6])
@@ -221,7 +221,7 @@ class ReportXls(report_sxw):
                     col += c[1]
                     break
             if not found:
-                _logger.warn("ReportXls.xls_row_template, "
+                _logger.warn("report_xls.xls_row_template, "
                              "column '%s' not found in specs", w)
         return r
 
@@ -235,7 +235,7 @@ class ReportXls(report_sxw):
             style = spec[6] and spec[6] or row_style
             if not data:
                 # if no data, use default values
-                data = ReportXls.xls_types_default[spec[3]]
+                data = report_xls.xls_types_default[spec[3]]
             if size != 1:
                 if formula:
                     ws.write_merge(