diff --git a/docs/api.md b/docs/api.md
index 40b597ad8..f7e12bf67 100644
--- a/docs/api.md
+++ b/docs/api.md
@@ -192,7 +192,7 @@ The endpoint supports the following optional form fields:
 -   `tags`: Similar to correspondent. Specify this multiple times to
     have multiple tags added to the document.
 -   `archive_serial_number`: An optional archive serial number to set.
--   `custom_fields`: Either n array of custom field ids to assign (with an empty
+-   `custom_fields`: Either an array of custom field ids to assign (with an empty
     value) to the document or an object mapping field id -> value.
 
 The endpoint will immediately return HTTP 200 if the document consumption