diff --git a/man2/fsync.2 b/man2/fsync.2
index cbaa02b06..0f494c731 100644
--- a/man2/fsync.2
+++ b/man2/fsync.2
@@ -52,15 +52,19 @@ Feature Test Macro Requirements for glibc (see
 .BR feature_test_macros (7)):
 .RE
 .PP
+.nf
 .BR fsync ():
     Glibc 2.16 and later:
         No feature test macros need be defined
     Glibc up to and including 2.15:
         _BSD_SOURCE || _XOPEN_SOURCE
             || /* Since glibc 2.8: */ _POSIX_C_SOURCE\ >=\ 200112L
+.fi
 .PP
 .BR fdatasync ():
+.nf
     _POSIX_C_SOURCE\ >=\ 199309L || _XOPEN_SOURCE\ >=\ 500
+.fi
 .SH DESCRIPTION
 .BR fsync ()
 transfers ("flushes") all modified in-core data of