diff --git a/pkg/engine/funcs.go b/pkg/engine/funcs.go
index 431f82f63..0d7c6d54b 100644
--- a/pkg/engine/funcs.go
+++ b/pkg/engine/funcs.go
@@ -178,7 +178,7 @@ func toTOML(v any) string {
 	e := toml.NewEncoder(b)
 	err := e.Encode(v)
 	if err != nil {
-		return err.Error()
+		return ""
 	}
 	return b.String()
 }