diff --git a/website/source/docs/providers/aws/r/ebs_volume.html.md b/website/source/docs/providers/aws/r/ebs_volume.html.md
index 78d902b3e0..b8050df148 100644
--- a/website/source/docs/providers/aws/r/ebs_volume.html.md
+++ b/website/source/docs/providers/aws/r/ebs_volume.html.md
@@ -22,6 +22,8 @@ resource "aws_ebs_volume" "example" {
 }
 ```
 
+~> **NOTE**: One of `size` or `snapshot_id` is required when specifying an EBS volume 
+
 ## Argument Reference
 
 The following arguments are supported: