diff --git a/docs/TestingGuide.html b/docs/TestingGuide.html
index 971e991b99b..830ee68015b 100644
--- a/docs/TestingGuide.html
+++ b/docs/TestingGuide.html
@@ -91,7 +91,7 @@ filenames themselves on the <tt>configure</tt> line.</li>
 
 <p>Darwin (Mac OS X) developers can simplify the installation of Expect and tcl
 by using fink.  <tt>fink install expect</tt> will install both. Alternatively,
-users not using Darwin an use <tt>sudo port install expect</tt> to install
+users not using Darwin can use <tt>sudo port install expect</tt> to install
 Expect and tcl.</p>
 
 </div>