diff --git a/Makefile b/Makefile
index 6b1f110..2fcc755 100644
--- a/Makefile
+++ b/Makefile
@@ -6,9 +6,12 @@ clean:
 
 install:
 	cp ./checkpw /usr/bin/
+	cp ./checkpw.1 /usr/share/man/man1/
+	gzip /usr/share/man/man1/checkpw.1
 	cp ./checkpw.h /usr/include/
 
 uninstall:
 	rm -f /usr/bin/checkpw
+	rm -f /usr/share/man/man1/checkpw.1.gz
 	rm -f /usr/include/checkpw.h
 
diff --git a/README.md b/README.md
index 81ba89f..6ee6876 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 checkpw is a program that checks the validity of a users password on a UNIX/[PAM](https://en.wikipedia.org/wiki/Pluggable_Authentication_Module)-based system.
 
-Currently only tested on Linux, but it should work on the [AIX](https://en.wikipedia.org/wiki/IBM_AIX), [DragonFly BSD](https://www.dragonflybsd.org/), [FreeBSD](https://www.freebsd.org/), [HP-UX](https://en.wikipedia.org/wiki/HP-UX), [Linux](https://kernel.org/), [macOS](https://en.wikipedia.org/wiki/MacOS), [NetBSD](https://netbsd.org/) and [Solaris](https://en.wikipedia.org/wiki/Oracle_Solaris) operating system too.
+Currently checkpw is only tested on Linux, but it should work on a [AIX](https://en.wikipedia.org/wiki/IBM_AIX), [DragonFly BSD](https://www.dragonflybsd.org/), [FreeBSD](https://www.freebsd.org/), [HP-UX](https://en.wikipedia.org/wiki/HP-UX), [Linux](https://kernel.org/), [macOS](https://en.wikipedia.org/wiki/MacOS), [NetBSD](https://netbsd.org/) and [Solaris](https://en.wikipedia.org/wiki/Oracle_Solaris) operating system too.
 
 ## The idea