diff --git a/setup.cfg b/setup.cfg
index 84fc68dc3c5224430a92e39659775d6205df13b4..da344d15ec9e68bca3f277f741a6f1d508baacf5 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -18,6 +18,10 @@ max-line-length = 80
 statistics = True
 count = True
 
+inline-quotes = single
+multiline-quotes = '''
+docstring-quotes = '''
+
 [metadata]
 name = gajim
 version = attr: gajim.__version__