diff --git a/core/src/avm2/globals/flash/text/engine/TextLine.as b/core/src/avm2/globals/flash/text/engine/TextLine.as
index a848ccfd6b8d..5c0acd3736d2 100644
--- a/core/src/avm2/globals/flash/text/engine/TextLine.as
+++ b/core/src/avm2/globals/flash/text/engine/TextLine.as
@@ -53,11 +53,23 @@ package flash.text.engine {
             return 12.0;
         }
 
+        [API("670")]
+        public function get totalAscent():Number {
+            stub_getter("flash.text.engine.TextLine", "totalAscent");
+            return 12.0;
+        }
+
         public function get descent():Number {
             stub_getter("flash.text.engine.TextLine", "descent");
             return 3.0;
         }
 
+        [API("670")]
+        public function get totalDescent():Number {
+            stub_getter("flash.text.engine.TextLine", "totalDescent");
+            return 3.0;
+        }
+
         public function get unjustifiedTextWidth():Number {
             stub_getter("flash.text.engine.TextLine", "unjustifiedTextWidth");
             return this._specifiedWidth;