diff --git a/parse-options.h b/parse-options.h
index fca944d9a9..997ffbee80 100644
--- a/parse-options.h
+++ b/parse-options.h
@@ -6,7 +6,7 @@
 struct repository;
 
 /**
- * Refer to Documentation/technical/api-parse-options.txt for the API doc.
+ * Refer to Documentation/technical/api-parse-options.adoc for the API doc.
  */
 
 enum parse_opt_type {