diff --git a/content/html/content/src/nsHTMLTableElement.cpp b/content/html/content/src/nsHTMLTableElement.cpp
index 9e41ceab6136..aca142a316b8 100644
--- a/content/html/content/src/nsHTMLTableElement.cpp
+++ b/content/html/content/src/nsHTMLTableElement.cpp
@@ -1155,13 +1155,15 @@ MapAttributesInto(nsIHTMLAttributes* aAttributes,
     if (value.GetUnit() == eHTMLUnit_Pixel) {
       if (nsnull==tableStyle)
         tableStyle = (nsStyleTable*)aContext->GetMutableStyleData(eStyleStruct_Table);
-      tableStyle->mCellSpacing.SetCoordValue(NSIntPixelsToTwips(value.GetPixelValue(), p2t));
+      tableStyle->mBorderSpacingX.SetCoordValue(NSIntPixelsToTwips(value.GetPixelValue(), p2t));
+      tableStyle->mBorderSpacingY.SetCoordValue(NSIntPixelsToTwips(value.GetPixelValue(), p2t));
     }
     else
     { // XXX: remove me as soon as we get this from the style sheet
       if (nsnull==tableStyle)
         tableStyle = (nsStyleTable*)aContext->GetMutableStyleData(eStyleStruct_Table);
-      tableStyle->mCellSpacing.SetCoordValue(NSIntPixelsToTwips(2, p2t));
+      tableStyle->mBorderSpacingX.SetCoordValue(NSIntPixelsToTwips(2, p2t));
+      tableStyle->mBorderSpacingY.SetCoordValue(NSIntPixelsToTwips(2, p2t));
     }
 
     // cols
diff --git a/layout/html/content/src/nsHTMLTableElement.cpp b/layout/html/content/src/nsHTMLTableElement.cpp
index 9e41ceab6136..aca142a316b8 100644
--- a/layout/html/content/src/nsHTMLTableElement.cpp
+++ b/layout/html/content/src/nsHTMLTableElement.cpp
@@ -1155,13 +1155,15 @@ MapAttributesInto(nsIHTMLAttributes* aAttributes,
     if (value.GetUnit() == eHTMLUnit_Pixel) {
       if (nsnull==tableStyle)
         tableStyle = (nsStyleTable*)aContext->GetMutableStyleData(eStyleStruct_Table);
-      tableStyle->mCellSpacing.SetCoordValue(NSIntPixelsToTwips(value.GetPixelValue(), p2t));
+      tableStyle->mBorderSpacingX.SetCoordValue(NSIntPixelsToTwips(value.GetPixelValue(), p2t));
+      tableStyle->mBorderSpacingY.SetCoordValue(NSIntPixelsToTwips(value.GetPixelValue(), p2t));
     }
     else
     { // XXX: remove me as soon as we get this from the style sheet
       if (nsnull==tableStyle)
         tableStyle = (nsStyleTable*)aContext->GetMutableStyleData(eStyleStruct_Table);
-      tableStyle->mCellSpacing.SetCoordValue(NSIntPixelsToTwips(2, p2t));
+      tableStyle->mBorderSpacingX.SetCoordValue(NSIntPixelsToTwips(2, p2t));
+      tableStyle->mBorderSpacingY.SetCoordValue(NSIntPixelsToTwips(2, p2t));
     }
 
     // cols