diff --git a/docs/cspell.json b/docs/cspell.json
index 2e3049d7bb3b1..5b340ccbf6091 100644
--- a/docs/cspell.json
+++ b/docs/cspell.json
@@ -667,6 +667,7 @@
     "unconfigured",
     "uninstallation",
     "uniqueid",
+    "unmarshal",
     "unprefixed",
     "unregistering",
     "uqcje",
diff --git a/docs/pages/management/join-services-to-your-cluster/kubernetes.mdx b/docs/pages/management/join-services-to-your-cluster/kubernetes.mdx
index 8eb9c69ed62b2..8c2299ff40e0e 100644
--- a/docs/pages/management/join-services-to-your-cluster/kubernetes.mdx
+++ b/docs/pages/management/join-services-to-your-cluster/kubernetes.mdx
@@ -223,7 +223,6 @@ apps:
 
 ## Step 4/5. Deploy the Application Service
 
-
 To use the token created in Step 1, the joining instance must run in the same
 Kubernetes cluster as the Auth Service and have a Kubernetes ServiceAccount
 token mounted.
diff --git a/docs/pages/server-access/guides/ec2-discovery.mdx b/docs/pages/server-access/guides/ec2-discovery.mdx
index b3381df84d051..f34fc2b3ce6a0 100644
--- a/docs/pages/server-access/guides/ec2-discovery.mdx
+++ b/docs/pages/server-access/guides/ec2-discovery.mdx
@@ -388,6 +388,17 @@ If Installs are showing failed or instances are failing to appear check the
 Command history in AWS System Manager -> Node Management -> Run Command.
 Select the instance-id of the Target to review Errors.
 
+### `cannot unmarshal object into Go struct field`
+
+If you encounter an error similar to the following:
+
+```text
+invalid format in plugin properties map[destinationPath:/tmp/installTeleport.sh sourceInfo:map[url:[https://example.teleport.sh:443/webapi/scripts/installer/preprod-installer](https://example.teleport.sh/webapi/scripts/installer/preprod-installer)] sourceType:HTTP];
+error json: cannot unmarshal object into Go struct field DownloadContentPlugin.sourceInfo of type string
+```
+
+It is likely that you're running an older SSM agent version. Upgrade to SSM agent version 3.1 or greater to resolve.
+
 ## Next steps
 
 - Read [Joining Nodes via AWS IAM