diff --git a/info/api/WebTwain_Viewer.md b/info/api/WebTwain_Viewer.md
index 8a1bc1e8..8960ef67 100644
--- a/info/api/WebTwain_Viewer.md
+++ b/info/api/WebTwain_Viewer.md
@@ -1067,6 +1067,7 @@ Viewer.on(
 **Parameters**
 
 `eventName`: Specify the event name.
+
 `callback`: Specify the listner.
 
 **Availability**