1 files changed, 2 insertions, 1 deletions

diff --git a/src/WixToolset.Core.WindowsInstaller/Bind/CreateOutputFromIRCommand.cs b/src/WixToolset.Core.WindowsInstaller/Bind/CreateOutputFromIRCommand.cs
index b52ff434..37383caa 100644
--- a/src/WixToolset.Core.WindowsInstaller/Bind/CreateOutputFromIRCommand.cs
+++ b/src/WixToolset.Core.WindowsInstaller/Bind/CreateOutputFromIRCommand.cs
@@ -231,6 +231,7 @@ namespace WixToolset.Core.WindowsInstaller.Bind
                     case SymbolDefinitionType.WixPatchRef:
                     case SymbolDefinitionType.WixPatchTarget:
                     case SymbolDefinitionType.WixProperty:
+                    case SymbolDefinitionType.WixProductTag:
                     case SymbolDefinitionType.WixSimpleReference:
                     case SymbolDefinitionType.WixSuppressAction:
                     case SymbolDefinitionType.WixSuppressModularization:
@@ -456,7 +457,7 @@ namespace WixToolset.Core.WindowsInstaller.Bind
 
         private void AddDirectorySymbol(DirectorySymbol symbol)
         {
-            if (String.IsNullOrEmpty(symbol.ShortName) && !symbol.Name.Equals(".") && !symbol.Name.Equals("SourceDir") && !Common.IsValidShortFilename(symbol.Name, false))
+            if (String.IsNullOrEmpty(symbol.ShortName) && symbol.Name != null && !symbol.Name.Equals(".") && !symbol.Name.Equals("SourceDir") && !Common.IsValidShortFilename(symbol.Name, false))
             {
                 symbol.ShortName = CreateShortName(symbol.Name, false, false, "Directory", symbol.ParentDirectoryRef);
             }