diff --git a/horreum-web/src/domain/tests/AllTests.tsx b/horreum-web/src/domain/tests/AllTests.tsx
index b38d9ccee..c47b7887a 100644
--- a/horreum-web/src/domain/tests/AllTests.tsx
+++ b/horreum-web/src/domain/tests/AllTests.tsx
@@ -412,7 +412,7 @@ export default function AllTests() {
     useEffect(() => {
         let query = ""
         if (folder) {
-            query += "&folder=" + folder
+            query += "&folder=" + encodeURIComponent(folder)
         }
         if (rolesFilter.key !== ONLY_MY_OWN.key) {
             query += "&filter=" + rolesFilter.key