1 files changed, 4 insertions, 4 deletions
diff --git a/components/script/dom/webidls/HTMLTableElement.webidl b/components/script/dom/webidls/HTMLTableElement.webidl
index 05acced2e57..bc389bfb796 100644
--- a/components/script/dom/webidls/HTMLTableElement.webidl
+++ b/components/script/dom/webidls/HTMLTableElement.webidl
@@ -11,26 +11,26 @@ interface HTMLTableElement : HTMLElement {
            attribute HTMLTableCaptionElement? caption;
   HTMLTableCaptionElement createCaption();
   [CEReactions]
-  void deleteCaption();
+  undefined deleteCaption();
 
   [CEReactions, SetterThrows]
            attribute HTMLTableSectionElement? tHead;
   HTMLTableSectionElement createTHead();
   [CEReactions]
-  void deleteTHead();
+  undefined deleteTHead();
 
   [CEReactions, SetterThrows]
            attribute HTMLTableSectionElement? tFoot;
   HTMLTableSectionElement createTFoot();
   [CEReactions]
-  void deleteTFoot();
+  undefined deleteTFoot();
 
   readonly attribute HTMLCollection tBodies;
   HTMLTableSectionElement createTBody();
 
   readonly attribute HTMLCollection rows;
   [Throws] HTMLTableRowElement insertRow(optional long index = -1);
-  [CEReactions, Throws] void deleteRow(long index);
+  [CEReactions, Throws] undefined deleteRow(long index);
 
   // also has obsolete members
 };