diff --git a/refs.h b/refs.h
index 9230d471420..56089d57247 100644
--- a/refs.h
+++ b/refs.h
@@ -345,7 +345,7 @@ struct ref_transaction *ref_transaction_begin(struct strbuf *err);
  *     msg -- a message describing the change (for the reflog).
  *
  *     err -- a strbuf for receiving a description of any error that
- *         might have occured.
+ *         might have occurred.
  *
  * The functions make internal copies of refname and msg, so the
  * caller retains ownership of these parameters.