diff --git a/_config.yml b/_config.yml
index 88aa31b88..bd0459cbb 100644
--- a/_config.yml
+++ b/_config.yml
@@ -6,7 +6,7 @@ description: >
   PCjs: The Original IBM PC in a Browser.
   Classic computer simulations in JavaScript.
   Includes an archive of historical PC software and publications.
-  Additional computer simulations in JavaScript include the 6502-based Ohio Scientifc Challenger 1P.
+  Additional computer simulations in JavaScript include the 6502-based Ohio Scientific Challenger 1P.
 baseurl: ""                 # "/pcjs" when using http://jeffpar.github.io or "" when using http://www.pcjs.org 
 url: "http://www.pcjs.org"  # "http://jeffpar.github.io" or "http://www.pcjs.org"
 twitter_username: jeffpar