diff --git a/.changeset/prerender-trailing-slash-query.md b/.changeset/prerender-trailing-slash-query.md
new file mode 100644
index 0000000000..9c7acd67a8
--- /dev/null
+++ b/.changeset/prerender-trailing-slash-query.md
@@ -0,0 +1,7 @@
+---
+'@tanstack/start-plugin-core': patch
+---
+
+fix(start-plugin-core): keep the prerender trailing slash off the query string
+
+The crawler applied `withTrailingSlash` to the full path including the query string, so the slash landed inside the last search-param value and, with `crawlLinks` enabled, sent the crawl into an infinite loop. Passing ufo's `respectQueryAndFragment` flag keeps the slash on the path.
diff --git a/packages/start-plugin-core/src/prerender.ts b/packages/start-plugin-core/src/prerender.ts
index 2fbd9e74b9..a20d1e6928 100644
--- a/packages/start-plugin-core/src/prerender.ts
+++ b/packages/start-plugin-core/src/prerender.ts
@@ -137,7 +137,7 @@ export async function prerender({
 
         try {
           const res = await requestWithRedirects(
-            withTrailingSlash(withBase(page.path, routerBasePath)),
+            withTrailingSlash(withBase(page.path, routerBasePath), true),
             {
               headers: {
                 ...(prerenderOptions.headers ?? {}),