diff --git a/Paraffin/Main.Update.cs b/Paraffin/Main.Update.cs
index 440da38..e7486a0 100644
--- a/Paraffin/Main.Update.cs
+++ b/Paraffin/Main.Update.cs
@@ -622,9 +622,9 @@ private static void FixKeyPathAttribute(String file,
         /// True if everything is cool, false if this is a multiple files
         /// per component file.
         /// </returns>
-        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Maintainability", 
-                                                         "CA1502:AvoidExcessiveComplexity", 
-                                                         Justification ="Want to keep this processing together for easy readability")]
+        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Maintainability",
+                                                         "CA1502:AvoidExcessiveComplexity",
+                                                         Justification = "Want to keep this processing together for easy readability")]
         private static Boolean InitializeArgumentsFromFile(String inputXml)
         {
             XElement options = XElement.Parse(inputXml);
@@ -638,7 +638,8 @@ private static Boolean InitializeArgumentsFromFile(String inputXml)
                 ReportIfDifferent = originalArgs.ReportIfDifferent,
                 PatchUpdate = originalArgs.PatchUpdate,
                 FileName = originalArgs.FileName,
-                PatchCreateFiles = originalArgs.PatchCreateFiles
+                PatchCreateFiles = originalArgs.PatchCreateFiles,
+                WiX4 = originalArgs.WiX4
             };
 
             // Look for the version element. If it's missing or 1, it's an old
@@ -759,7 +760,7 @@ private static Boolean InitializeArgumentsFromFile(String inputXml)
             if (permanentValue.Count() == 1)
             {
 
-                argValues.Permanent = Convert.ToBoolean(options.Descendants(PERMANENT).First().Value, 
+                argValues.Permanent = Convert.ToBoolean(options.Descendants(PERMANENT).First().Value,
                                                         CultureInfo.InvariantCulture);
             }
 
diff --git a/Paraffin/Main.cs b/Paraffin/Main.cs
index 06f6098..411b003 100644
--- a/Paraffin/Main.cs
+++ b/Paraffin/Main.cs
@@ -172,6 +172,7 @@
  * 3.70 - Added support for WiX 4 fragments.
  *      - Updated to .NET 4.6.2.
  * 3.71 - Fixed a bug in WiX 4 support.
+ * 3.72 - Fixed a bug in WiX 4 support with update.
  -----------------------------------------------------------------------------*/
 namespace Wintellect.Paraffin
 {
diff --git a/Paraffin/Properties/AssemblyInfo.cs b/Paraffin/Properties/AssemblyInfo.cs
index f69283e..2d933bc 100644
--- a/Paraffin/Properties/AssemblyInfo.cs
+++ b/Paraffin/Properties/AssemblyInfo.cs
@@ -44,5 +44,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("3.7.1.0")]
-[assembly: AssemblyFileVersion("3.7.1.0")]
+[assembly: AssemblyVersion("3.7.2.0")]
+[assembly: AssemblyFileVersion("3.7.2.0")]