diff --git a/README.md b/README.md
index 6576021..0a0d6a3 100644
--- a/README.md
+++ b/README.md
@@ -193,6 +193,8 @@ Options:
       --uc, --unionCommonType
                              generate a common type for unions if possible (
                                default is false)
+      --dtd, --allowDtdParse
+                             allow DTD parsing (default is false)
 ```
 
 For use from code use the [library NuGet package](https://www.nuget.org/packages/XmlSchemaClassGenerator-beta/):
diff --git a/XmlSchemaClassGenerator.Console/Program.cs b/XmlSchemaClassGenerator.Console/Program.cs
index 5edc1f4..6aee3ce 100644
--- a/XmlSchemaClassGenerator.Console/Program.cs
+++ b/XmlSchemaClassGenerator.Console/Program.cs
@@ -66,6 +66,7 @@ static int Main(string[] args)
             var unionCommonType = false;
             var separateNamespaceHierarchy = false;
             var serializeEmptyCollections = false;
+            var allowDtdParse = false;
 
             var options = new OptionSet {
                 { "h|help", "show this message and exit", v => showHelp = v != null },
@@ -160,6 +161,7 @@ A file name may be given by appending a pipe sign (|) followed by a file name (l
                 { "ca|commandArgs", "generate a comment with the exact command line arguments that were used to generate the source code (default is true)", v => generateCommandLineArgs = v != null },
                 { "uc|unionCommonType", "generate a common type for unions if possible (default is false)", v => unionCommonType = v != null },
                 { "ec|serializeEmptyCollections", "serialize empty collections (default is false)", v => serializeEmptyCollections = v != null },
+                { "dtd|allowDtdParse", "allows dtd parse (default is false)", v => allowDtdParse = v != null },
             };
 
             var globsAndUris = options.Parse(args);
@@ -248,6 +250,7 @@ A file name may be given by appending a pipe sign (|) followed by a file name (l
                 MapUnionToWidestCommonType = unionCommonType,
                 SeparateNamespaceHierarchy = separateNamespaceHierarchy,
                 SerializeEmptyCollections = serializeEmptyCollections,
+                AllowDtdParse = allowDtdParse
             };
 
             if (nameSubstituteMap.Any())
diff --git a/XmlSchemaClassGenerator/Generator.cs b/XmlSchemaClassGenerator/Generator.cs
index c543b1c..b9d96f5 100644
--- a/XmlSchemaClassGenerator/Generator.cs
+++ b/XmlSchemaClassGenerator/Generator.cs
@@ -342,6 +342,12 @@ public bool SerializeEmptyCollections
             set { _configuration.SerializeEmptyCollections = value; }
         }
 
+        public bool AllowDtdParse
+        {
+            get { return _configuration.AllowDtdParse; }
+            set { _configuration.AllowDtdParse = value; }
+        }
+
         public bool ValidationError { get; private set; }
 
         static Generator()
@@ -352,7 +358,7 @@ static Generator()
         public void Generate(IEnumerable<string> files)
         {
             var set = new XmlSchemaSet();
-            var settings = new XmlReaderSettings { DtdProcessing = DtdProcessing.Ignore };
+            var settings = new XmlReaderSettings { DtdProcessing = AllowDtdParse ? DtdProcessing.Parse : DtdProcessing.Ignore };
             var readers = files.Select(f => XmlReader.Create(f, settings));
 
             ValidationError = false;
diff --git a/XmlSchemaClassGenerator/GeneratorConfiguration.cs b/XmlSchemaClassGenerator/GeneratorConfiguration.cs
index 6cd6692..4541bc0 100644
--- a/XmlSchemaClassGenerator/GeneratorConfiguration.cs
+++ b/XmlSchemaClassGenerator/GeneratorConfiguration.cs
@@ -348,5 +348,10 @@ public void WriteLog(string message)
         /// Determines whether empty collections should be serialized as empty elements. Default is false.
         /// </summary>
         public bool SerializeEmptyCollections { get; set; } = false;
+
+        /// <summary>
+        /// Allow DTD parsing. Default is false.
+        /// </summary>
+        public bool AllowDtdParse { get; set; } = false;
     }
 }