diff --git a/frontend/src/lib/prefetchers.ts b/frontend/src/lib/prefetchers.ts
index a91c46d..6ccb2b9 100644
--- a/frontend/src/lib/prefetchers.ts
+++ b/frontend/src/lib/prefetchers.ts
@@ -67,12 +67,12 @@ const prefetchPostChanges: Prefetcher = async (qc, url) => {
 
 export const routePrefetchers: { test: (u: URL) => boolean; run:  Prefetcher }[] = [
     { test: u => u.pathname === '/' || u.pathname === '/posts', run: prefetchPostsIndex },
-    { test: u => (['/posts/new', '/posts/changes'].includes (u.pathname)
+    { test: u => (!(['/posts/new', '/posts/changes'].includes (u.pathname))
 		  && Boolean (mPost (u.pathname))),
       run: prefetchPostShow },
     { test: u => u.pathname === '/posts/changes', run: prefetchPostChanges },
     { test: u => u.pathname === '/wiki', run: prefetchWikiPagesIndex },
-    { test: u => (['/wiki/new', '/wiki/changes'].includes (u.pathname)
+    { test: u => (!(['/wiki/new', '/wiki/changes'].includes (u.pathname))
 		  && Boolean (mWiki (u.pathname))),
       run: prefetchWikiPageShow },
     ]