diff --git a/man7/standards.7 b/man7/standards.7
index e541f1f38..c04efa960 100644
--- a/man7/standards.7
+++ b/man7/standards.7
@@ -129,22 +129,22 @@ describing commands and utilities, ratified by ISO in 1993
 .RI ( "ISO/IEC 9945-2:1993" ).
 .TP
 .BR POSIX.1b " (formerly known as \fIPOSIX.4\fP)"
-IEEE Std 1003.1b-1993
+IEEE Std 1003.1b-1993,
 describing real-time facilities
 for portable operating systems, ratified by ISO in 1996
 .RI ( "ISO/IEC 9945-1:1996" ).
 .TP
 .B POSIX.1c
-IEEE Std 1003.1c-1995 describing the POSIX threads interfaces.
+IEEE Std 1003.1c-1995, which describes the POSIX threads interfaces.
 .TP
 .B POSIX.1d
-IEEE Std 1003.1c-1999 describing additional real-time extensions.
+IEEE Std 1003.1c-1999, which describes additional real-time extensions.
 .TP
 .B POSIX.1g
-IEEE Std 1003.1g-2000 describing networking APIs (including sockets).
+IEEE Std 1003.1g-2000, which describes networking APIs (including sockets).
 .TP
 .B POSIX.1j
-IEEE Std 1003.1j-2000 describing advanced real-time extensions.
+IEEE Std 1003.1j-2000, which describes advanced real-time extensions.
 .TP
 .B POSIX.1-1996
 A 1996 revision of POSIX.1 which incorporated POSIX.1b and POSIX.1c.