diff --git a/mozilla/suite/common/pref/pref-applications.xul b/mozilla/suite/common/pref/pref-applications.xul
index 7473df3de2f..8bc2f6ff622 100644
--- a/mozilla/suite/common/pref/pref-applications.xul
+++ b/mozilla/suite/common/pref/pref-applications.xul
@@ -19,7 +19,7 @@
 ]>
 
 
-<window xmlns:html="http://www.w3.org/TR/REC-html40"
+<xul:window xmlns:html="http://www.w3.org/TR/REC-html40"
 		xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
         onload="return StartUp('Applications');"  title="&window.title;">
 
@@ -58,4 +58,4 @@
 </html:table>
 </html:form>
 
-</html:window>
\ No newline at end of file
+</xul:window>
\ No newline at end of file
diff --git a/mozilla/xpfe/components/prefwindow/resources/content/pref-applications.xul b/mozilla/xpfe/components/prefwindow/resources/content/pref-applications.xul
index 7473df3de2f..8bc2f6ff622 100644
--- a/mozilla/xpfe/components/prefwindow/resources/content/pref-applications.xul
+++ b/mozilla/xpfe/components/prefwindow/resources/content/pref-applications.xul
@@ -19,7 +19,7 @@
 ]>
 
 
-<window xmlns:html="http://www.w3.org/TR/REC-html40"
+<xul:window xmlns:html="http://www.w3.org/TR/REC-html40"
 		xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
         onload="return StartUp('Applications');"  title="&window.title;">
 
@@ -58,4 +58,4 @@
 </html:table>
 </html:form>
 
-</html:window>
\ No newline at end of file
+</xul:window>
\ No newline at end of file