diff --git a/man2/chown.2 b/man2/chown.2
index 0c1bdcf76..11ba41dc7 100644
--- a/man2/chown.2
+++ b/man2/chown.2
@@ -65,10 +65,10 @@ Feature Test Macro Requirements for glibc (see
 .PD 0
 .ad l
 .RS 4
-_BSD_SOURCE || _XOPEN_SOURCE\ >=\ 500
+/* Since glibc 2.12: */ _POSIX_C_SOURCE\ >=\ 200809L
+    || _XOPEN_SOURCE\ >=\ 500
 .\"    || _XOPEN_SOURCE\ &&\ _XOPEN_SOURCE_EXTENDED
-.br
-    || /* Since glibc 2.12: */ _POSIX_C_SOURCE\ >=\ 200809L
+    || /* Glibc versions <= 2.19: */ _BSD_SOURCE
 .RE
 .sp
 .BR fchownat ():