diff --git a/Make.defaults b/Make.defaults
index 2d18005..7ecba00 100644
--- a/Make.defaults
+++ b/Make.defaults
@@ -11,6 +11,7 @@ includedir ?= $(prefix)include/
 bindir	?= $(prefix)bin/
 pcdir	?= $(libdir)pkgconfig/
 docdir	?= $(prefix)share/doc/
+rpmmacrodir ?= /etc/rpm/
 DESTDIR	?=
 INSTALLROOT = $(DESTDIR)
 
diff --git a/src/Makefile b/src/Makefile
index 5fb2841..ca546a3 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -90,8 +90,8 @@ install :
 	$(INSTALL) -m 644 pesigcheck.1 $(INSTALLROOT)$(mandir)man1/
 	$(INSTALL) -m 644 authvar.1 $(INSTALLROOT)$(mandir)man1/
 	$(INSTALL) -m 644 efisiglist.1 $(INSTALLROOT)$(mandir)man1/
-	$(INSTALL) -d -m 755 $(INSTALLROOT)/etc/rpm/
-	$(INSTALL) -m 644 macros.pesign $(INSTALLROOT)/etc/rpm/
+	$(INSTALL) -d -m 755 $(INSTALLROOT)$(rpmmacrodir)
+	$(INSTALL) -m 644 macros.pesign $(INSTALLROOT)$(rpmmacrodir)
 	$(INSTALL) -d -m 755 $(INSTALLROOT)$(libexecdir)/pesign/
 	$(INSTALL) -m 750 pesign-authorize $(INSTALLROOT)$(libexecdir)/pesign/
 	$(INSTALL) -d -m 700 $(INSTALLROOT)/etc/pesign