--- a/layout/style/nsStyleStruct.h
+++ b/layout/style/nsStyleStruct.h
@@ -1712,17 +1712,18 @@ struct nsStyleText {
     this->~nsStyleText();
     aContext->PresShell()->
       FreeByObjectID(mozilla::eArenaObjectID_nsStyleText, this);
   }
 
   nsChangeHint CalcDifference(const nsStyleText& aOther) const;
   static nsChangeHint MaxDifference() {
     return NS_STYLE_HINT_FRAMECHANGE |
-           nsChangeHint_UpdateSubtreeOverflow;
+           nsChangeHint_UpdateSubtreeOverflow |
+           nsChangeHint_NeutralChange;
   }
   static nsChangeHint DifferenceAlwaysHandledForDescendants() {
     // CalcDifference never returns the reflow hints that are sometimes
     // handled for descendants as hints not handled for descendants.
     return nsChangeHint_NeedReflow |
            nsChangeHint_ReflowChangesSizeOrPosition |
            nsChangeHint_ClearAncestorIntrinsics;
   }