diff --git a/makefile b/makefile
index f99c918..cea61d6 100644
--- a/makefile
+++ b/makefile
@@ -13,6 +13,8 @@
 # You should have received a copy of the GNU General Public License
 # along with Cockpit Navigator.  If not, see <https://www.gnu.org/licenses/>.
 
+EL7_DIST=.el7
+
 default:
 	
 
@@ -21,7 +23,7 @@ all: default
 install:
 	mkdir -p $(DESTDIR)/usr/share/cockpit/
 	cp -rpf navigator $(DESTDIR)/usr/share/cockpit
-ifeq ($(DIST),".el7")
+ifeq ($(DIST),$(EL7_DIST))
 	sed -i "s/pf-c-button/btn/g;s/pf-m-primary/btn-primary/g;s/pf-m-secondary/btn-default/g;s/pf-m-danger/btn-danger/g" $(DESTDIR)/usr/share/cockpit/navigator/navigator.html
 	sed -i "s/pf-c-button/btn/g;s/pf-m-primary/btn-primary/g;s/pf-m-secondary/btn-default/g;s/pf-m-danger/btn-danger/g" $(DESTDIR)/usr/share/cockpit/navigator/components/ModalPrompt.js
 endif