diff --git a/extensions.ent b/extensions.ent
index 301916a283..c1272fb3bf 100644
--- a/extensions.ent
+++ b/extensions.ent
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
 <!-- $Revision$ -->
 
 <!--
diff --git a/language-defs.ent b/language-defs.ent
index 9c2535b67b..b46bf2c5df 100644
--- a/language-defs.ent
+++ b/language-defs.ent
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
 <!-- $Revision$ -->
 
 <!-- Part titles used mostly in manual.xml itself -->