diff --git a/spec/unit/provider/ifconfig/debian_spec.rb b/spec/unit/provider/ifconfig/debian_spec.rb
index <HASH>..<HASH> 100644
--- a/spec/unit/provider/ifconfig/debian_spec.rb
+++ b/spec/unit/provider/ifconfig/debian_spec.rb
@@ -52,6 +52,7 @@ describe Chef::Provider::Ifconfig::Debian do
     File.should_receive(:new).with(@config_filename_ifaces).and_return(StringIO.new)
     File.should_receive(:open).with(@config_filename_ifaces, "w").and_yield(@config_file_ifaces)
     File.should_receive(:new).with(@config_filename_ifcfg, "w").and_return(@config_file_ifcfg)
+    File.should_receive(:exist?).with(@config_filename_ifaces).and_return(true)
    end
 
    it "should create network-scripts directory" do
Stub that /etc/network/interfaces really is there [on windows]