diff --git a/src/as/com/threerings/flash/TextFieldUtil.as b/src/as/com/threerings/flash/TextFieldUtil.as
index c0fb2a09..3c52f243 100644
--- a/src/as/com/threerings/flash/TextFieldUtil.as
+++ b/src/as/com/threerings/flash/TextFieldUtil.as
@@ -65,7 +65,7 @@ public class TextFieldUtil
 
         Util.init(tf, initProps, null, MASK_FIELD_PROPS);
         tf.text = text;
-        if (tf.autoSize != null) {
+        if (tf.autoSize != TextFieldAutoSize.NONE) {
             tf.width = tf.textWidth + WIDTH_PAD;
             tf.height = tf.textHeight + HEIGHT_PAD;
         }