diff --git a/src/bin/psql/copy.c b/src/bin/psql/copy.c
index 92c955b637..04553c3a33 100644
--- a/src/bin/psql/copy.c
+++ b/src/bin/psql/copy.c
@@ -33,7 +33,7 @@
  *	\copy ( query stmt ) to filename [options]
  *
  * where 'filename' can be one of the following:
- *	'<file path>' | PROGRAM '<command>' | stdin | stdout | pstdout | pstdout
+ *	'<file path>' | PROGRAM '<command>' | stdin | stdout | pstdin | pstdout
  * and 'query' can be one of the following:
  *	SELECT | UPDATE | INSERT | DELETE
  *