diff --git a/docs/TestingGuide.html b/docs/TestingGuide.html
index 9e4a40a..28a5e8a 100644
--- a/docs/TestingGuide.html
+++ b/docs/TestingGuide.html
@@ -601,7 +601,7 @@
 <div class="doc_text">
 
 <p>The CHECK-NOT: directive is used to verify that a string doesn't occur
-between two matches (or the first matches and the beginning of the file).  For
+between two matches (or the first match and the beginning of the file).  For
 example, to verify that a load is removed by a transformation, a test like this
 can be used:</p>