Product amount is required

diff --git a/InternetSecure.pm b/InternetSecure.pm
index 691d72b..c7f71b7 100755 (executable)
--- a/InternetSecure.pm
+++ b/InternetSecure.pm
@@ -588,7 +588,7 @@ the following fields:
 
 =over 4
 
-=item amount
+=item amount (required)
 
 Unit price of this product.