diff --git a/plugins/guests/alt/cap/configure_networks.rb b/plugins/guests/alt/cap/configure_networks.rb
index f4a778523..e9f64a940 100644
--- a/plugins/guests/alt/cap/configure_networks.rb
+++ b/plugins/guests/alt/cap/configure_networks.rb
@@ -24,7 +24,7 @@ module VagrantPlugins
           end.compact
           networks.each.with_index do |network, i|
             network[:device] = interfaces[network[:interface]]
-            extra_opts = net_configs[i].dup || {}
+            extra_opts = net_configs[i] ? net_configs[i].dup : {}
 
             if nmcli_installed
               # Now check if the device is actively being managed by NetworkManager
diff --git a/plugins/guests/redhat/cap/configure_networks.rb b/plugins/guests/redhat/cap/configure_networks.rb
index c5794aa38..c618c8e53 100644
--- a/plugins/guests/redhat/cap/configure_networks.rb
+++ b/plugins/guests/redhat/cap/configure_networks.rb
@@ -24,7 +24,7 @@ module VagrantPlugins
           end.compact
           networks.each.with_index do |network, i|
             network[:device] = interfaces[network[:interface]]
-            extra_opts = net_configs[i].dup || {}
+            extra_opts = net_configs[i] ? net_configs[i].dup : {}
 
             if nmcli_installed
               # Now check if the device is actively being managed by NetworkManager