diff --git a/lib/puppet/parser/functions/has_interface_with.rb b/lib/puppet/parser/functions/has_interface_with.rb
index 00e405d13..36915246d 100644
--- a/lib/puppet/parser/functions/has_interface_with.rb
+++ b/lib/puppet/parser/functions/has_interface_with.rb
@@ -35,7 +35,13 @@ module Puppet::Parser::Functions
 
     kind, value = args
 
-    if lookupvar(kind) == value
+    # Bug with 3.7.1 - 3.7.3  when using future parser throws :undefined_variable
+    # https://tickets.puppetlabs.com/browse/PUP-3597
+    factval = nil
+    catch :undefined_variable do
+      factval = lookupvar(kind)
+    end
+    if factval == value
       return true
     end
 
@@ -44,7 +50,11 @@ module Puppet::Parser::Functions
       iface.downcase!
       factval = nil
       begin
-        factval = lookupvar("#{kind}_#{iface}")
+        # Bug with 3.7.1 - 3.7.3 when using future parser throws :undefined_variable
+        # https://tickets.puppetlabs.com/browse/PUP-3597
+        catch :undefined_variable do
+          factval = lookupvar("#{kind}_#{iface}")
+        end
       rescue Puppet::ParseError # Eat the exception if strict_variables = true is set
       end
       if value == factval
diff --git a/spec/acceptance/ensure_packages_spec.rb b/spec/acceptance/ensure_packages_spec.rb
index 3651f292e..ca4b24902 100755
--- a/spec/acceptance/ensure_packages_spec.rb
+++ b/spec/acceptance/ensure_packages_spec.rb
@@ -1,7 +1,7 @@
 #! /usr/bin/env ruby -S rspec
 require 'spec_helper_acceptance'
 
-describe 'ensure_packages function', :unless => (UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) || fact('osfamily') == 'windows') do
+describe 'ensure_packages function', :unless => (UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) && fact('osfamily') != 'windows') do
   describe 'success' do
     it 'ensure_packages a package' do
       apply_manifest('package { "rake": ensure => absent, provider => "gem", }')
diff --git a/spec/acceptance/ensure_resource_spec.rb b/spec/acceptance/ensure_resource_spec.rb
index f1bfa5450..c3d72fc87 100755
--- a/spec/acceptance/ensure_resource_spec.rb
+++ b/spec/acceptance/ensure_resource_spec.rb
@@ -1,7 +1,7 @@
 #! /usr/bin/env ruby -S rspec
 require 'spec_helper_acceptance'
 
-describe 'ensure_resource function', :unless => (UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) || fact('osfamily') == 'windows') do
+describe 'ensure_resource function', :unless => (UNSUPPORTED_PLATFORMS.include?(fact('operatingsystem')) && fact('osfamily') != 'windows') do
   describe 'success' do
     it 'ensure_resource a package' do
       apply_manifest('package { "rake": ensure => absent, provider => "gem", }')