diff --git a/src/content/docs/workers-ai/features/prompt-caching.mdx b/src/content/docs/workers-ai/features/prompt-caching.mdx
index 3647fc82847..5c01e854688 100644
--- a/src/content/docs/workers-ai/features/prompt-caching.mdx
+++ b/src/content/docs/workers-ai/features/prompt-caching.mdx
@@ -61,7 +61,7 @@ const response = await env.AI.run(
 		],
 	},
 	{
-		headers: {
+		extraHeaders: {
 			"x-session-affinity": "ses_12345678",
 		},
 	},