diff --git a/lib/facter/git_version.rb b/lib/facter/git_version.rb
index c0ece6a..a4b303f 100644
--- a/lib/facter/git_version.rb
+++ b/lib/facter/git_version.rb
@@ -11,6 +11,7 @@
 # Notes:
 #   None
 Facter.add('git_version') do
+  confine :kernel => /^(?!windows$)/
   setcode do
     if Facter::Util::Resolution.which('git')
       git_version_cmd = 'git --version 2>&1'