diff --git a/Bloxstrap/AppData/CommonAppData.cs b/Bloxstrap/AppData/CommonAppData.cs
index 4a74118..54aaaa0 100644
--- a/Bloxstrap/AppData/CommonAppData.cs
+++ b/Bloxstrap/AppData/CommonAppData.cs
@@ -32,6 +32,7 @@ namespace Bloxstrap.AppData
             { "content-textures3.zip",         @"PlatformContent\pc\textures\" },
             { "content-terrain.zip",           @"PlatformContent\pc\terrain\" },
             { "content-platform-fonts.zip",    @"PlatformContent\pc\fonts\" },
+            { "content-platform-dictionaries.zip", @"PlatformContent\pc\shared_compression_dictionaries\" },
 
             { "extracontent-luapackages.zip",  @"ExtraContent\LuaPackages\" },
             { "extracontent-translations.zip", @"ExtraContent\translations\" },
diff --git a/Bloxstrap/Bootstrapper.cs b/Bloxstrap/Bootstrapper.cs
index 409c8d0..207c4a4 100644
--- a/Bloxstrap/Bootstrapper.cs
+++ b/Bloxstrap/Bootstrapper.cs
@@ -1193,7 +1193,15 @@ namespace Bloxstrap
         {
             const string LOG_IDENT = "Bootstrapper::ExtractPackage";
 
-            string packageFolder = Path.Combine(AppData.Directory, AppData.PackageDirectoryMap[package.Name]);
+            string? packageDir = AppData.PackageDirectoryMap.GetValueOrDefault(package.Name);
+
+            if (packageDir is null)
+            {
+                App.Logger.WriteLine(LOG_IDENT, $"WARNING: {package.Name} was not found in the package map!");
+                return;
+            }
+
+            string packageFolder = Path.Combine(AppData.Directory, packageDir);
             string? fileFilter = null;
 
             // for sharpziplib, each file in the filter needs to be a regex