diff --git a/templates/guests/debian/network_dhcp.erb b/templates/guests/debian/network_dhcp.erb
index 6c305270a..fb3d47b54 100644
--- a/templates/guests/debian/network_dhcp.erb
+++ b/templates/guests/debian/network_dhcp.erb
@@ -6,8 +6,8 @@ iface <%= options[:device] %> inet dhcp
     post-up route del default dev $IFACE || true
 <% else %>
     # We need to disable eth0, see GH-2648
-    post-up route del default dev eth0 || true
+    post-up route del default dev $IFACE || true
     post-up dhclient $IFACE
-    pre-down route add default dev eth0
+    pre-down route add default dev $IFACE
 <% end %>
 #VAGRANT-END
diff --git a/test/unit/templates/guests/debian/network_dhcp_test.rb b/test/unit/templates/guests/debian/network_dhcp_test.rb
index e239d2eea..f30bbd950 100644
--- a/test/unit/templates/guests/debian/network_dhcp_test.rb
+++ b/test/unit/templates/guests/debian/network_dhcp_test.rb
@@ -31,9 +31,9 @@ describe "templates/guests/debian/network_dhcp" do
         auto eth1
         iface eth1 inet dhcp
             # We need to disable eth0, see GH-2648
-            post-up route del default dev eth0 || true
+            post-up route del default dev $IFACE || true
             post-up dhclient $IFACE
-            pre-down route add default dev eth0
+            pre-down route add default dev $IFACE
         #VAGRANT-END
       EOH
     end