diff --git a/lambda/py/lambda_function.py b/lambda/py/lambda_function.py
index e426678..4b30061 100755
--- a/lambda/py/lambda_function.py
+++ b/lambda/py/lambda_function.py
@@ -151,7 +151,7 @@ def handle(self, handler_input):
                 commands=[
                     SpeakItemCommand(
                         component_id="karaokespeechtext",
-                        highlight_mode=HighlightMode.LINE)
+                        highlight_mode=HighlightMode.line)
                 ]
             )
         )