diff --git a/Source/src/WixSharp.Samples/Wix# Samples/FirewallException/setup.cs b/Source/src/WixSharp.Samples/Wix# Samples/FirewallException/setup.cs
index e7b3bca6..79150747 100644
--- a/Source/src/WixSharp.Samples/Wix# Samples/FirewallException/setup.cs	
+++ b/Source/src/WixSharp.Samples/Wix# Samples/FirewallException/setup.cs	
@@ -10,7 +10,7 @@ class Script
 {
     static public void Main()
     {
-        // set Wix 5.0 as a default WiX Toolset version        // set Wix 5.0 as a default WiX Toolset version
+        // set Wix 5.0 as a default WiX Toolset version
         WixTools.SetWixVersion(Environment.CurrentDirectory, "5.0.0");
 
         var project =
diff --git a/Source/src/WixSharp/FirewallException.cs b/Source/src/WixSharp/FirewallException.cs
index 67945022..bb6a7f18 100644
--- a/Source/src/WixSharp/FirewallException.cs
+++ b/Source/src/WixSharp/FirewallException.cs
@@ -195,7 +195,7 @@ public class FirewallException : WixEntity, IGenericEntity
         /// ICMP types and codes for the firewall exception.
         /// </summary>
         [Xml]
-        public bool IcmpTypesAndCodes;
+        public string IcmpTypesAndCodes;
 
         /// <summary>
         /// Interface for the firewall exception.