--- a/Makefile
+++ b/Makefile
@@ -5,10 +5,10 @@
 PREFIX ?= /usr/local
 BINDIR ?= bin
 MANDIR ?= share/man
-SYSCONFDIR ?= /etc
-RUNDIR ?= /run
+SYSCONFDIR = @TERMUX_PREFIX@/etc
+RUNDIR = @TERMUX_PREFIX@/var/run
 
-sharedstatedir := /var/lib
+sharedstatedir := @TERMUX_PREFIX@/var/lib
 config_path := $(SYSCONFDIR)/soju/config
 admin_socket_path := $(RUNDIR)/soju/admin
 goflags := $(GOFLAGS) -ldflags=" \
@@ -36,6 +36,6 @@
 	mkdir -p $(DESTDIR)$(sharedstatedir)/soju
 	cp -f $(commands) $(DESTDIR)$(PREFIX)/$(BINDIR)
 	cp -f $(man_pages) $(DESTDIR)$(PREFIX)/$(MANDIR)/man1
-	[ -f $(DESTDIR)$(config_path) ] || cp -f config.in $(DESTDIR)$(config_path)
+	cp -f config.in $(DESTDIR)$(config_path)
 
 .PHONY: soju sojudb sojuctl clean install