diff --git a/doc/backend_programs.html b/doc/backend_programs.html
index 455635b802..f44f6d0b7d 100644
--- a/doc/backend_programs.html
+++ b/doc/backend_programs.html
@@ -129,7 +129,7 @@ use crontab to run timeout_checker continuously.
 
 </pre>
 
-<h3>Validater</h3>
+<h3>Validator</h3>
 <p>
 BOINC supplies a utility program <b>validate</b>
 to perform validation and credit-granting.