diff --git a/docs/WritingAnLLVMPass.html b/docs/WritingAnLLVMPass.html
index 61bbba51361..aae0dec6b1a 100644
--- a/docs/WritingAnLLVMPass.html
+++ b/docs/WritingAnLLVMPass.html
@@ -996,7 +996,7 @@ depended on.</p>
 
 <div class="doc_text">
 
-<p>One of the main responsibilities of the <tt>PassManager</tt> is the make sure
+<p>One of the main responsibilities of the <tt>PassManager</tt> is to make sure
 that passes interact with each other correctly.  Because <tt>PassManager</tt>
 tries to <a href="#passmanager">optimize the execution of passes</a> it must
 know how the passes interact with each other and what dependencies exist between