diff --git a/content/en/functions/union.md b/content/en/functions/union.md
index bf2a302d4..459e3620d 100644
--- a/content/en/functions/union.md
+++ b/content/en/functions/union.md
@@ -9,7 +9,7 @@ categories: [functions]
 menu:
   docs:
     parent: "functions"
-keywords: [filtering,lists]
+keywords: [collections,intersect,union,complement]
 signature: ["union SET1 SET2"]
 workson: []
 hugoversion: 0.20