diff --git a/src/yunohost/data_migrations/0023_postgresql_11_to_13.py b/src/yunohost/data_migrations/0023_postgresql_11_to_13.py
index 30527f0c8..145f15558 100644
--- a/src/yunohost/data_migrations/0023_postgresql_11_to_13.py
+++ b/src/yunohost/data_migrations/0023_postgresql_11_to_13.py
@@ -78,5 +78,5 @@ class MyMigration(Migration):
                 )
             )
 
-        out = out.strip().split("\n")
+        out = out.strip().split(b"\n")
         return (returncode, out, err)