diff --git a/git-ftp/Makefile b/git-ftp/Makefile

index 40ca0fa..60c164b 100644

--- a/git-ftp/Makefile

+++ b/git-ftp/Makefile

@@ -3,6 +3,7 @@ SHELL=/bin/sh

 DESTDIR?=/usr/local

 prefix?=${DESTDIR}

+mandir?=$(prefix)/man

 # files that need mode 755

 EXEC_FILES=git-ftp

@@ -24,12 +25,11 @@ install:

 	install -m 0755 $(EXEC_FILES) $(prefix)/bin

 install-man:

-	install -d -m 0755 $(prefix)/man

+	install -d -m 0755 $(mandir)

 	cd man && \

 	make man && \

-	install -d -m 0755 $(prefix)/man/man1 && \

-	install -m 0644 $(MAN_FILE) $(prefix)/man/man1 && \

-	mandb $(prefix)/man/man1

+	install -d -m 0755 $(mandir)/man1 && \

+	install -m 0644 $(MAN_FILE) $(mandir)/man1

 install-all: install install-man

@@ -39,11 +39,10 @@ uninstall:

 	rm -f $(EXEC_FILES)

 uninstall-man:

-	test -d $(prefix)/man && \

-	cd $(prefix)/man && \

+	test -d $(mandir) && \

+	cd $(mandir) && \

 	rm -f $(MAN_FILE)

-	mandb -f $(prefix)/man/$(MAN_FILE)

-	rmdir --ignore-fail-on-non-empty $(prefix)/man/man1

+	rmdir -rf $(mandir)/man1

 uninstall-all: uninstall uninstall-man