--- man/man1/man.man1
+++ man/man1/man.man1	2018-11-23 14:23:22.531297359 +0000
@@ -93,6 +93,9 @@ numbers of the manual followed by the ty
 .TS
 tab (@);
 l lx.
+0@T{
+Header files (usually found in \fI/usr/include\fR)
+T}
 1@T{
 Executable programs or shell commands
 T}