diff --git a/Makefile.in b/Makefile.in
index 1d7cd515..e2fe7a64 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -36,9 +36,9 @@ distclean: clean
 	$(CXX) $(CXXFLAGS) $(INCLUDES) -c -o $*.o $*.cpp
 
 install: znc @MODTARGET@
-	mkdir -p $(DEST)$(prefix)/bin
-	mkdir -p $(DEST)$(prefix)/include/znc
-	install -m 0711 znc $(DEST)$(prefix)/bin
-	install -m 0755 znc-config $(DEST)$(prefix)/bin
-	install -m 0644 *.h $(DEST)$(prefix)/include/znc
-	(cd modules; $(MAKE) install DEST=$(DEST))
+	mkdir -p $(DESTDIR)$(prefix)/bin
+	mkdir -p $(DESTDIR)$(prefix)/include/znc
+	install -m 0711 znc $(DESTDIR)$(prefix)/bin
+	install -m 0755 znc-config $(DESTDIR)$(prefix)/bin
+	install -m 0644 *.h $(DESTDIR)$(prefix)/include/znc
+	if test -n "@MODTARGET@"; then (cd modules; $(MAKE) install DESTDIR=$(DESTDIR)); fi
diff --git a/modules/Makefile.in b/modules/Makefile.in
index c958d6a9..ade4d358 100644
--- a/modules/Makefile.in
+++ b/modules/Makefile.in
@@ -26,10 +26,10 @@ install: all create_install_dir $(INSTALL_TARGS)
 	@echo -n ""
 
 create_install_dir:
-	mkdir -p $(DEST)$(prefix)/share/znc
+	mkdir -p $(DESTDIR)$(prefix)/share/znc
 
 install_%:
-	install -m 0711 $(subst install_,,$@) $(DEST)$(prefix)/share/znc
+	install -m 0711 $(subst install_,,$@) $(DESTDIR)$(prefix)/share/znc
 
 clean:
 	rm -rf *.so *.o core core.*
diff --git a/znc.spec b/znc.spec
index 103f375a..96e69597 100644
--- a/znc.spec
+++ b/znc.spec
@@ -26,7 +26,7 @@ make all
 rm -rf $RPM_BUILD_ROOT
 
 %install
-make install DEST=$RPM_BUILD_ROOT
+make install DESTDIR=$RPM_BUILD_ROOT
 
 
 %files