diff --git a/src/yunohost/data_migrations/0018_xtable_to_nftable.py b/src/yunohost/data_migrations/0018_xtable_to_nftable.py
index af5d11e43..94b47d944 100644
--- a/src/yunohost/data_migrations/0018_xtable_to_nftable.py
+++ b/src/yunohost/data_migrations/0018_xtable_to_nftable.py
@@ -122,5 +122,5 @@ class MyMigration(Migration):
                 )
             )
 
-        out = out.strip().split("\n")
+        out = out.strip().split(b"\n")
         return (returncode, out, err)