diff --git a/info/api/WebTwain_Acquire.md b/info/api/WebTwain_Acquire.md
index 2743da09..aa66d8e0 100644
--- a/info/api/WebTwain_Acquire.md
+++ b/info/api/WebTwain_Acquire.md
@@ -769,7 +769,7 @@ Bring up the Source Selection User Interface (UI) for the user to choose a data
 SelectSource(
     successCallBack?: () => void,
     failureCallBack?: (errorCode: number, errorString: string) => void
-): boolean | void;
+): boolean | string;
 ```
 
 **Parameters**