diff --git a/src/Jackett.Common/Definitions/anilibria.yml b/src/Jackett.Common/Definitions/anilibria.yml
index 5586efd02475b..4fb2a532a1d18 100644
--- a/src/Jackett.Common/Definitions/anilibria.yml
+++ b/src/Jackett.Common/Definitions/anilibria.yml
@@ -51,8 +51,9 @@ search:
       selector: quality.string
     _series:
       selector: series.string
+      optional: true
     title:
-      text: "{{ .Result.title_ru }} / {{ .Result.title_en }}{{ if .Result.title_alternative }} / {{ .Result.title_alternative }}{{ else }}{{ end }} ({{ .Result.year }}) [{{ .Result._quality }}] - {{ .Result._series }}"
+      text: "{{ .Result.title_ru }} / {{ .Result.title_en }}{{ if .Result.title_alternative }} / {{ .Result.title_alternative }}{{ else }}{{ end }} ({{ .Result.year }}) [{{ .Result._quality }}]{{ if .Result._series }} - {{ .Result._series }}{{ else }}{{ end }}"
     _code:
       selector: ..code
     details: