diff --git a/plugins_translations/plugins_translations.py b/plugins_translations/plugins_translations.py
index 163e7a5bcc362d02ff6b5f77ab22109c6d88988b..56e3dea378a7cf15bd0ad10d11f39ebeb399bdde 100644
--- a/plugins_translations/plugins_translations.py
+++ b/plugins_translations/plugins_translations.py
@@ -51,3 +51,4 @@ class PluginsTranslationsPlugin(GajimPlugin):
     @log_calls('PluginsTranslationsPlugin')
     def deactivate(self):
         self.remove_translations()
+        self.config['last_version'] = '0'