diff --git a/app/utils/report/templates/bisect.html b/app/utils/report/templates/bisect.html
index deb8fd503..d0d7d212a 100644
--- a/app/utils/report/templates/bisect.html
+++ b/app/utils/report/templates/bisect.html
@@ -24,11 +24,28 @@
 }
 pre {
   display: inline;
+}
+div.disclaimer {
+  background-color: #eeeeee;
+  width: 480px;
+  padding: 2px 8px 2px 8px;
+  font-size: 0.8em;
 }
       </style>
       <title>{{ subject_str }}</title>
     </head>
     <body>
+      <div class="disclaimer">
+        <p>
+          This automated bisection report was sent to you on the basis that you
+          may be involved with the breaking commit it has found.  No manual
+          investigation has been done to verify it, and the root cause of the
+          problem may be somewhere else.
+        </p>
+        <p>
+          Hope this helps!
+        </p>
+      </div>
       <p>
         <h1>{{ subject_str }}</h1>
         <table>
diff --git a/app/utils/report/templates/bisect.txt b/app/utils/report/templates/bisect.txt
index 53651ffd1..c75c693aa 100644
--- a/app/utils/report/templates/bisect.txt
+++ b/app/utils/report/templates/bisect.txt
@@ -1,3 +1,11 @@
+* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+* This automated bisection report was sent to you on the basis  *
+* that you may be involved with the breaking commit it has      *
+* found.  No manual investigation has been done to verify it,   *
+* and the root cause of the problem may be somewhere else.      *
+* Hope this helps!                                              *
+* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+
 {{ subject_str }}
 
   Good:       {{ good }}
