diff --git a/src/AST/Declaration.cs b/src/AST/Declaration.cs
index 5c623bf1..00eb00c8 100644
--- a/src/AST/Declaration.cs
+++ b/src/AST/Declaration.cs
@@ -365,40 +365,6 @@ namespace CppSharp.AST
         public abstract T Visit<T>(IDeclVisitor<T> visitor);
     }
 
-    /// <summary>
-    /// Base class for declarations which introduce a typedef-name.
-    /// </summary>
-    public abstract class TypedefNameDecl : Declaration, ITypedDecl
-    {
-        public Type Type { get { return QualifiedType.Type; } }
-        public QualifiedType QualifiedType { get; set; }
-        public bool IsSynthetized { get; set; }
-    }
-
-    /// <summary>
-    /// Represents a type definition in C++.
-    /// </summary>
-    public class TypedefDecl : TypedefNameDecl
-    {
-        public override T Visit<T>(IDeclVisitor<T> visitor)
-        {
-            return visitor.VisitTypedefDecl(this);
-        }
-    }
-
-    /// <summary>
-    /// Represents a type alias in C++.
-    /// </summary>
-    public class TypeAlias : TypedefNameDecl
-    {
-        public TypeAliasTemplate DescribedAliasTemplate { get; set; }
-
-        public override T Visit<T>(IDeclVisitor<T> visitor)
-        {
-            return visitor.VisitTypeAliasDecl(this);
-        }
-    }
-
     public interface IDeclVisitor<out T>
     {
         T VisitDeclaration(Declaration decl);
diff --git a/src/AST/Typedef.cs b/src/AST/Typedef.cs
new file mode 100644
index 00000000..f0f270b9
--- /dev/null
+++ b/src/AST/Typedef.cs
@@ -0,0 +1,36 @@
+namespace CppSharp.AST
+{
+    /// <summary>
+    /// Base class for declarations which introduce a typedef-name.
+    /// </summary>
+    public abstract class TypedefNameDecl : Declaration, ITypedDecl
+    {
+        public Type Type { get { return QualifiedType.Type; } }
+        public QualifiedType QualifiedType { get; set; }
+        public bool IsSynthetized { get; set; }
+    }
+
+    /// <summary>
+    /// Represents a type definition in C++.
+    /// </summary>
+    public class TypedefDecl : TypedefNameDecl
+    {
+        public override T Visit<T>(IDeclVisitor<T> visitor)
+        {
+            return visitor.VisitTypedefDecl(this);
+        }
+    }
+
+    /// <summary>
+    /// Represents a type alias in C++.
+    /// </summary>
+    public class TypeAlias : TypedefNameDecl
+    {
+        public TypeAliasTemplate DescribedAliasTemplate { get; set; }
+
+        public override T Visit<T>(IDeclVisitor<T> visitor)
+        {
+            return visitor.VisitTypeAliasDecl(this);
+        }
+    }
+}
\ No newline at end of file