diff --git a/glances/exports/glances_prometheus/__init__.py b/glances/exports/glances_prometheus/__init__.py
index 85e2e5dd..6a03571c 100644
--- a/glances/exports/glances_prometheus/__init__.py
+++ b/glances/exports/glances_prometheus/__init__.py
@@ -18,6 +18,7 @@ from glances.exports.export import GlancesExport
 from glances.globals import listkeys
 from glances.logger import logger
 
+
 class Export(GlancesExport):
     """This class manages the Prometheus export module."""