diff --git a/mozilla/layout/tables/nsTableFrame.cpp b/mozilla/layout/tables/nsTableFrame.cpp
index d8ea98a198b..458d8a2cab3 100644
--- a/mozilla/layout/tables/nsTableFrame.cpp
+++ b/mozilla/layout/tables/nsTableFrame.cpp
@@ -1324,7 +1324,8 @@ nsTableFrame::InsertRowGroups(nsIFrame* aFirstRowGroupFrame,
     nsAutoVoidArray rows;
     // Loop over the rowgroups and check if some of them are new, if they are
     // insert cellmaps in the order that is predefined by OrderRowGroups,
-    for (PRUint32 rgIndex = 0; rgIndex < numRowGroups; rgIndex++) {
+    PRUint32 rgIndex;
+    for (rgIndex = 0; rgIndex < numRowGroups; rgIndex++) {
       nsIFrame* kidFrame = aFirstRowGroupFrame;
       while (kidFrame) {
         nsTableRowGroupFrame* rgFrame = GetRowGroupFrame(kidFrame);
@@ -1349,7 +1350,7 @@ nsTableFrame::InsertRowGroups(nsIFrame* aFirstRowGroupFrame,
     ResetRowIndices(aFirstRowGroupFrame, aLastRowGroupFrame);
 
     //now that the cellmaps are reordered too insert the rows
-    for (PRUint32 rgIndex = 0; rgIndex < numRowGroups; rgIndex++) {
+    for (rgIndex = 0; rgIndex < numRowGroups; rgIndex++) {
       nsIFrame* kidFrame = aFirstRowGroupFrame;
       while (kidFrame) {
         nsTableRowGroupFrame* rgFrame = GetRowGroupFrame(kidFrame);