diff --git a/Makefile b/Makefile
index 2b12d9fc..5c76ba53 100644
--- a/Makefile
+++ b/Makefile
@@ -12,8 +12,8 @@ RM		:= rm -rf
 
 # User-defined variables
 PREFIX		= /usr/local
-BINPREFIX	= ${PREFIX}/bin
-MANPREFIX	= ${PREFIX}/man
+bindir		= ${PREFIX}/bin
+mandir		= ${PREFIX}/man
 Q		= @
 STRIP		= -s
 BINMODE		= 555
@@ -72,18 +72,18 @@ clean:
 	$Q${RM} src/link/lexer.c src/link/parser.c src/link/parser.h
 
 install: all
-	$Qmkdir -p ${BINPREFIX}
-	$Qinstall ${STRIP} -m ${BINMODE} rgbasm ${BINPREFIX}/rgbasm
-	$Qinstall ${STRIP} -m ${BINMODE} rgbfix ${BINPREFIX}/rgbfix
-	$Qinstall ${STRIP} -m ${BINMODE} rgblink ${BINPREFIX}/rgblink
-	$Qinstall ${STRIP} -m ${BINMODE} rgbgfx ${BINPREFIX}/rgbgfx
-	$Qmkdir -p ${MANPREFIX}/man1 ${MANPREFIX}/man5 ${MANPREFIX}/man7
-	$Qinstall -m ${MANMODE} src/rgbds.7 ${MANPREFIX}/man7/rgbds.7
-	$Qinstall -m ${MANMODE} src/asm/rgbasm.1 ${MANPREFIX}/man1/rgbasm.1
-	$Qinstall -m ${MANMODE} src/fix/rgbfix.1 ${MANPREFIX}/man1/rgbfix.1
-	$Qinstall -m ${MANMODE} src/link/rgblink.1 ${MANPREFIX}/man1/rgblink.1
-	$Qinstall -m ${MANMODE} src/link/rgblink.5 ${MANPREFIX}/man5/rgblink.5
-	$Qinstall -m ${MANMODE} src/gfx/rgbgfx.1 ${MANPREFIX}/man1/rgbgfx.1
+	$Qmkdir -p ${DESTDIR}${bindir}
+	$Qinstall ${STRIP} -m ${BINMODE} rgbasm ${DESTDIR}${bindir}/rgbasm
+	$Qinstall ${STRIP} -m ${BINMODE} rgbfix ${DESTDIR}${bindir}/rgbfix
+	$Qinstall ${STRIP} -m ${BINMODE} rgblink ${DESTDIR}${bindir}/rgblink
+	$Qinstall ${STRIP} -m ${BINMODE} rgbgfx ${DESTDIR}${bindir}/rgbgfx
+	$Qmkdir -p ${DESTDIR}${mandir}/man1 ${DESTDIR}${mandir}/man5 ${DESTDIR}${mandir}/man7
+	$Qinstall -m ${MANMODE} src/rgbds.7 ${DESTDIR}${mandir}/man7/rgbds.7
+	$Qinstall -m ${MANMODE} src/asm/rgbasm.1 ${DESTDIR}${mandir}/man1/rgbasm.1
+	$Qinstall -m ${MANMODE} src/fix/rgbfix.1 ${DESTDIR}${mandir}/man1/rgbfix.1
+	$Qinstall -m ${MANMODE} src/link/rgblink.1 ${DESTDIR}${mandir}/man1/rgblink.1
+	$Qinstall -m ${MANMODE} src/link/rgblink.5 ${DESTDIR}${mandir}/man5/rgblink.5
+	$Qinstall -m ${MANMODE} src/gfx/rgbgfx.1 ${DESTDIR}${mandir}/man1/rgbgfx.1
 
 rgbasm: ${rgbasm_obj}
 	$Q${CC} ${REALCFLAGS} -o $@ ${rgbasm_obj} -lm
diff --git a/README.md b/README.md
index 45a54c22..b3b69b1b 100644
--- a/README.md
+++ b/README.md
@@ -118,11 +118,12 @@ This is the complete list of user-defined variables:
 
 - `PREFIX`: Location where RGBDS will be installed. Defaults to `/usr/local`.
 
-- `BINPREFIX`: Location where the RGBDS programs will be installed. Defaults to
-  `${PREFIX}/bin`.
+- `bindir`: Location where the binaries will be installed. Defaults to `${PREFIX}/bin`.
 
-- `MANPREFIX`: Location where the RGBDS man pages will be installed. Defaults to
-  `${PREFIX}/man`.
+- `mandir`: Location where the manpages will be installed. Defaults to `${PREFIX}/man`.
+
+- `DESTDIR`: This is prepended to all paths during the installation. It is
+  mainly used for packaging.
 
 - `Q`: Whether to quiet the build or not. To make the build more verbose, clear
   this variable. Defaults to `@`.