diff --git a/product/ERP5Wizard/Tool/WizardTool.py b/product/ERP5Wizard/Tool/WizardTool.py
index 8e0af622eaee5002b55c6444ce4fa1b1849f9757..ec4b0c5b8aa8255b87a1d24c8068e40613167d4f 100644
--- a/product/ERP5Wizard/Tool/WizardTool.py
+++ b/product/ERP5Wizard/Tool/WizardTool.py
@@ -767,8 +767,9 @@ class WizardTool(BaseTool):
     server_url = self.getServerUrl() + self.getServerRoot()
     server_response = self._callRemoteMethod('getBT5FilesForBusinessConfiguration', server_url)
     ## save erp5_uid which will make it possible to distingush different business conf for client
-    current_bc_index = server_response['server_buffer']['current_bc_index']
-    self._setServerInfo(current_bc_index = current_bc_index)
+    current_bc_index = server_response['server_buffer'].get('current_bc_index', None)
+    if current_bc_index is not None:
+      self._setServerInfo(current_bc_index = current_bc_index)
     self.installBT5FilesFromServer(server_response, True)
     server_response = self._callRemoteMethod('finalizeInstallation', server_url)
     LOG("Wizard", INFO,