diff --git a/man2/open.2 b/man2/open.2
index 6360636af..bac1ee806 100644
--- a/man2/open.2
+++ b/man2/open.2
@@ -824,7 +824,7 @@ fd = open("/path/to/dir", O_TMPFILE | O_RDWR,
 
 /* File I/O on \(aqfd\(aq... */
 
-linkat(fd, NULL, AT_FDCWD, "/path/for/file", AT_EMPTY_PATH);
+linkat(fd, "", AT_FDCWD, "/path/for/file", AT_EMPTY_PATH);
 
 /* If the caller doesn\(aqt have the CAP_DAC_READ_SEARCH
    capability (needed to use AT_EMPTY_PATH with linkat(2)),