diff --git a/docs/tasks/streams.mdx b/docs/tasks/streams.mdx
index 0f97488f3..cb45b2d67 100644
--- a/docs/tasks/streams.mdx
+++ b/docs/tasks/streams.mdx
@@ -672,6 +672,7 @@ Examples:
 - ❌ `ftp://api.trigger.dev`
 - ❌ `ws://api.trigger.dev` / `wss://api.trigger.dev`
 - ❌ `https://api.trigger.dev/\ninternal`
+- ❌ `https://api.trigger.dev/\tinternal`
 
 Validation errors use these exact messages:
 
diff --git a/packages/ai/README.md b/packages/ai/README.md
index 84670de50..b29387b15 100644
--- a/packages/ai/README.md
+++ b/packages/ai/README.md
@@ -179,6 +179,7 @@ Examples:
 - ❌ `ftp://api.trigger.dev` (non-http protocol)
 - ❌ `ws://api.trigger.dev` / `wss://api.trigger.dev` (websocket protocols are rejected)
 - ❌ `https://api.trigger.dev/\ninternal` (internal whitespace characters)
+- ❌ `https://api.trigger.dev/\tinternal` (internal tab characters)
 
 Validation errors use these exact messages: