From c80dc01c7a9c5974b11d0653a0ddcdee002b5b4f Mon Sep 17 00:00:00 2001
From: slothful-vassal <89943360+slothful-vassal@users.noreply.github.com>
Date: Tue, 13 Jan 2026 12:04:52 +0100
Subject: [PATCH] fix category filter (#654)

---
 web/src/lib/stores/trail_store.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/web/src/lib/stores/trail_store.ts b/web/src/lib/stores/trail_store.ts
index b05de3ac..d8173983 100644
--- a/web/src/lib/stores/trail_store.ts
+++ b/web/src/lib/stores/trail_store.ts
@@ -584,7 +584,8 @@ function buildFilterText(user: AuthRecord, filter: TrailFilter, includeGeo: bool
     }
 
     if (filter.category.length > 0) {
-        filterText += ` AND category IN ['${filter.category.join(",")}']`;
+        const categoryValues = filter.category.map(category => `'${category}'`).join(", ");
+        filterText += ` AND category IN [${categoryValues}]`;
     }
 
     if (filter.tags.length > 0) {