diff --git a/man2/sigaltstack.2 b/man2/sigaltstack.2
index a0af2f891..040df832a 100644
--- a/man2/sigaltstack.2
+++ b/man2/sigaltstack.2
@@ -38,6 +38,7 @@ Feature Test Macro Requirements for glibc (see
 .BR sigaltstack ():
 .ad l
 .RS 4
+.PD 0
 .TP 4
 Since glibc 2.12
 _BSD_SOURCE || _XOPEN_SOURCE\ >=\ 500 ||
@@ -47,6 +48,7 @@ _POSIX_C_SOURCE\ >=\ 200809L || _XOPEN_SOURCE\ >=\ 700
 Before glibc 2.12
 _BSD_SOURCE || _XOPEN_SOURCE\ >=\ 500 ||
 _XOPEN_SOURCE\ &&\ _XOPEN_SOURCE_EXTENDED
+.PD
 .RE
 .ad
 .SH DESCRIPTION