diff --git a/doc/arm/Bv9ARM.ch09.html b/doc/arm/Bv9ARM.ch09.html
index a31321b48f..810f9cac38 100644
--- a/doc/arm/Bv9ARM.ch09.html
+++ b/doc/arm/Bv9ARM.ch09.html
@@ -95,7 +95,7 @@
 	  when parsing certain malformed DNSSEC keys.
 	</p>
 <p>
-	  This flaw was discovered by Hanno B&#50102;eck of the Fuzzing
+	  This flaw was discovered by Hanno B&#50102;ck of the Fuzzing
 	  Project, and is disclosed in CVE-2015-5722. [RT #40212]
 	</p>
 </li>
diff --git a/doc/arm/notes.html b/doc/arm/notes.html
index 5864642ecc..8d6d43ca70 100644
--- a/doc/arm/notes.html
+++ b/doc/arm/notes.html
@@ -56,7 +56,7 @@
 	  when parsing certain malformed DNSSEC keys.
 	</p>
 <p>
-	  This flaw was discovered by Hanno B&#50102;eck of the Fuzzing
+	  This flaw was discovered by Hanno B&ouml;ck of the Fuzzing
 	  Project, and is disclosed in CVE-2015-5722. [RT #40212]
 	</p>
 </li>