diff --git a/docs/api-doc-markdown.md b/docs/api-doc-markdown.md
index 309ef0b0f7a9..05e795149f1e 100644
--- a/docs/api-doc-markdown.md
+++ b/docs/api-doc-markdown.md
@@ -9,9 +9,9 @@ title: Markdown Features
 
 Documents use the following markdown header fields that are enclosed by a line `---` on either side:
 
-`id`: A unique document id. If this field is not present, the document's `id` will default to it's file name (without the extension).
+`id`: A unique document id. If this field is not present, the document's `id` will default to its file name (without the extension).
 
-`title`: The title of your document. If this field is not present, the document's `title` will default to it's `id`.
+`title`: The title of your document. If this field is not present, the document's `title` will default to its `id`.
 
 `sidebar_label`: The text shown in the document sidebar for this document. If this field is not present, the document's `sidebar_label` will default to its `title`.