diff --git a/Makefile b/Makefile
index a1b59bd..d10b401 100755
--- a/Makefile
+++ b/Makefile
@@ -34,15 +34,23 @@ clean:
 install: all
 	install -d -m755 $(INSTALL_DIR)
 
-	cp -pr gtk-2.0		$(INSTALL_DIR)
-	cp -pr gtk-3.0		$(INSTALL_DIR)
-	cp -pr gtk-3.20		$(INSTALL_DIR)
-	cp -pr metacity-1	$(INSTALL_DIR)
-	cp -pr openbox-3	$(INSTALL_DIR)
-	cp -pr xfce-notify-4.0	$(INSTALL_DIR)
-	cp -pr xfwm4		$(INSTALL_DIR)
-	cp -pr unity		$(INSTALL_DIR)
-	cp -p  index.theme	$(INSTALL_DIR)
+	mkdir -p			$(INSTALL_DIR)/gtk-3.0
+	mkdir -p			$(INSTALL_DIR)/gtk-3.20
+	cp -pr gtk-2.0			$(INSTALL_DIR)
+	cp -p  gtk-3.0/gtk.css		$(INSTALL_DIR)/gtk-3.0
+	cp -p  gtk-3.0/gtk-dark.css	$(INSTALL_DIR)/gtk-3.0
+	cp -p  gtk-3.0/gtk.gresource	$(INSTALL_DIR)/gtk-3.0
+	cp -p  gtk-3.0/thumbnail.png	$(INSTALL_DIR)/gtk-3.0
+	cp -p  gtk-3.20/gtk.css		$(INSTALL_DIR)/gtk-3.20
+	cp -p  gtk-3.20/gtk-dark.css	$(INSTALL_DIR)/gtk-3.20
+	cp -p  gtk-3.20/gtk.gresource	$(INSTALL_DIR)/gtk-3.20
+	cp -p  gtk-3.20/thumbnail.png	$(INSTALL_DIR)/gtk-3.20
+	cp -pr metacity-1		$(INSTALL_DIR)
+	cp -pr openbox-3		$(INSTALL_DIR)
+	cp -pr xfce-notify-4.0		$(INSTALL_DIR)
+	cp -pr xfwm4			$(INSTALL_DIR)
+	cp -pr unity			$(INSTALL_DIR)
+	cp -p  index.theme		$(INSTALL_DIR)
 
 uninstall:
 	rm -rf $(INSTALL_DIR)