diff --git a/single-page b/single-page
index 2782833de..add2bb913 100644
--- a/single-page
+++ b/single-page
@@ -2747,7 +2747,7 @@
 * [Higher Intellect](https://preterhuman.net/) - Document Search
 * [qDoc](https://idoc.tips/) - Document Search
 * [Doc Search](https://parksdigital.com/doc-search/) - Document Search
-* [STC](hhttps://libstc.cc/) - Document / Article Text Search
+* [STC](https://libstc.cc/) - Document / Article Text Search
 * [KUNDOC](https://c.coek.info/) - Science / Articles
 * [DOKU.PUB](https://doku.pub/) - Science / Articles
 * [Dataone](https://www.dataone.org/) - Datasets