diff --git a/install.mk b/install.mk
index d974c11..14b52f3 100644
--- a/install.mk
+++ b/install.mk
@@ -24,7 +24,7 @@ INSTALL_PREFIX ?= $(CONF_INSTALL_PREFIX)
 INSTALL_SBIN_DIR ?= $(DESTDIR)/$(INSTALL_PREFIX)/sbin
 INSTALL_BIN_DIR ?= $(DESTDIR)/$(INSTALL_PREFIX)/bin
 INSTALL_LIB_DIR ?= $(DESTDIR)/$(CONF_INSTALL_LIBDIR)
-INSTALL_SYSD_DIR ?= $(DESTDIR)/$(INSTALL_PREFIX)/lib/systemd/system
+INSTALL_SYSD_DIR ?= $(DESTDIR)/lib/systemd/system
 INSTALL_ETC_DIR ?= $(DESTDIR)/etc
 INSTALL_INC_DIR ?= $(DESTDIR)/$(INSTALL_PREFIX)/include
 INSTALL_MAN_DIR ?= $(DESTDIR)/$(INSTALL_PREFIX)/share/man