1 files changed, 2 insertions, 0 deletions

diff --git a/src/wixext/FirewallConstants.cs b/src/wixext/FirewallConstants.cs
index 16caa5b4..7bb12ba4 100644
--- a/src/wixext/FirewallConstants.cs
+++ b/src/wixext/FirewallConstants.cs
@@ -9,6 +9,8 @@ namespace WixToolset.Firewall
     static class FirewallConstants
     {
         // from icftypes.h
+        public const int NET_FW_RULE_DIR_IN = 1;
+        public const int NET_FW_RULE_DIR_OUT = 2;
         public const int NET_FW_IP_PROTOCOL_TCP = 6;
         public const int NET_FW_IP_PROTOCOL_UDP = 17;