diff --git a/ref/layout_instructions.mdwn b/ref/layout_instructions.mdwn
index fa08715..a1b8488 100644
--- a/ref/layout_instructions.mdwn
+++ b/ref/layout_instructions.mdwn
@@ -112,7 +112,7 @@ program `lacheck`.
 
 ## Metadata
 
-* Set the article identifier with `\ipolSetID{}`; use the OJs
+* Set the article identifier with `\ipolSetID{}`; use the OJS
   submission ID.
 * Set the submission date with `\ipolSetSubmissionYear{}`,
   `\ipolSetSubmissionMonth{}` and `\ipolSetSubmissionDay{}`; you can