diff -urNad guncat.orig/guncat-0.92.00/debian/rules guncat/guncat-0.92.00/debian/rules
--- guncat.orig/guncat-0.92.00/debian/rules	2015-02-08 10:41:23.920892758 +0000
+++ guncat/guncat-0.92.00/debian/rules	2015-02-08 10:44:32.101310761 +0000
@@ -63,7 +63,7 @@
 
 	# Add here commands to install the package into debian/guncat.
 	./build install program debian/guncat/usr/bin/guncat
-	./build install man     debian/guncat/usr/share/man/man1
+	GZIP="-9n" ./build install man     debian/guncat/usr/share/man/man1
 	./build install std     debian/guncat/usr/share/doc/guncat
 
 # install-indep: