diff --git a/content/html/content/src/nsGenericHTMLElement.cpp b/content/html/content/src/nsGenericHTMLElement.cpp
index 0d290bc153ef..80d987276543 100644
--- a/content/html/content/src/nsGenericHTMLElement.cpp
+++ b/content/html/content/src/nsGenericHTMLElement.cpp
@@ -800,7 +800,6 @@ nsGenericHTMLElement::AfterSetAttr(int32_t aNamespaceID, nsIAtom* aName,
           dir = dirValue;
           SetDirectionality(dir, aNotify);
           ClearHasDirAuto();
-          ClearHasDirAutoSet();
           SetHasFixedDir();
         }
       } else {
@@ -810,7 +809,6 @@ nsGenericHTMLElement::AfterSetAttr(int32_t aNamespaceID, nsIAtom* aName,
           SetHasDirAuto();
         } else {
           ClearHasDirAuto();
-          ClearHasDirAutoSet();
           dir = RecomputeDirectionality(this, aNotify);
         }
       }