diff --git a/man2/chroot.2 b/man2/chroot.2
index f1e1f2ec8..db739f9b4 100644
--- a/man2/chroot.2
+++ b/man2/chroot.2
@@ -37,6 +37,29 @@ chroot \- change root directory
 .B #include <unistd.h>
 .sp
 .BI "int chroot(const char *" path );
+.sp
+.in -4n
+Feature Test Macro Requirements for glibc (see
+.BR feature_test_macros (7)):
+.in
+.sp
+.BR chroot ():
+.ad l
+.RS 4
+.PD 0
+.TP 4
+Since glibc 2.2.2:
+.nf
+_BSD_SOURCE ||
+    (_XOPEN_SOURCE >= 500 ||
+        _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED) &&
+    !(_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600)
+.TP 4
+.fi
+Before glibc 2.2.2: none
+.PD
+.RE
+.ad b
 .SH DESCRIPTION
 .BR chroot ()
 changes the root directory of the calling process to that specified in