diff --git a/beetsplug/advancedrewrite.py b/beetsplug/advancedrewrite.py
index 639aa5247..20f2b7e03 100644
--- a/beetsplug/advancedrewrite.py
+++ b/beetsplug/advancedrewrite.py
@@ -161,7 +161,7 @@ class AdvancedRewritePlugin(BeetsPlugin):
                             )
                     elif isinstance(replacement, str):
                         if Item._fields[fieldname] is MULTI_VALUE_DSV:
-                            replacement = list(replacement)
+                            replacement = [replacement]
                     else:
                         raise UserError(
                             f"Invalid type of replacement {replacement} "