diff --git a/src/groups/index.js b/src/groups/index.js
index e4f24e5335..1e50814a79 100644
--- a/src/groups/index.js
+++ b/src/groups/index.js
@@ -120,7 +120,7 @@ Groups.getAllGroupNames = async function (set) {
 		return [...names];
 	}
 	names = await db.getSortedSetRevRange(set, 0, -1);
-	cache.set(names);
+	cache.set(cacheKey, names);
 	return [...names];
 };