diff --git a/man7/man-pages.7 b/man7/man-pages.7
index 5c047c453..674762723 100644
--- a/man7/man-pages.7
+++ b/man7/man-pages.7
@@ -717,6 +717,9 @@ uppercase	upper case, upper-case
 usable	useable
 user space	userspace
 username	user name
+x86-64	x86_64	T{
+Except if referring to result of "uname\ \-m" or similar
+T}
 zeros	zeroes
 .TE
 .PP