diff --git a/src/yunohost/data_migrations/0017_postgresql_9p6_to_11.py b/src/yunohost/data_migrations/0017_postgresql_9p6_to_11.py
index cbdfabb1f..1ccf5ccc9 100644
--- a/src/yunohost/data_migrations/0017_postgresql_9p6_to_11.py
+++ b/src/yunohost/data_migrations/0017_postgresql_9p6_to_11.py
@@ -78,5 +78,5 @@ class MyMigration(Migration):
                 )
             )
 
-        out = out.strip().split("\n")
+        out = out.strip().split(b"\n")
         return (returncode, out, err)