diff --git a/src/AST/Type.cs b/src/AST/Type.cs
index 5fa4fb89..0ca5c828 100644
--- a/src/AST/Type.cs
+++ b/src/AST/Type.cs
@@ -664,6 +664,7 @@ namespace CppSharp.AST
         Float,
         Double,
         IntPtr,
+        UIntPtr,
         Char16
     }
 
diff --git a/src/Generator/Generators/CLI/CLITypePrinter.cs b/src/Generator/Generators/CLI/CLITypePrinter.cs
index 8fc1645d..9875cfbe 100644
--- a/src/Generator/Generators/CLI/CLITypePrinter.cs
+++ b/src/Generator/Generators/CLI/CLITypePrinter.cs
@@ -185,6 +185,7 @@ namespace CppSharp.Generators.CLI
                 case PrimitiveType.Float: return "float";
                 case PrimitiveType.Double: return "double";
                 case PrimitiveType.IntPtr: return "IntPtr";
+                case PrimitiveType.UIntPtr: return "UIntPtr";
             }
 
             throw new NotSupportedException();
diff --git a/src/Generator/Generators/CSharp/CSharpTypePrinter.cs b/src/Generator/Generators/CSharp/CSharpTypePrinter.cs
index 9b5521fa..5930afb1 100644
--- a/src/Generator/Generators/CSharp/CSharpTypePrinter.cs
+++ b/src/Generator/Generators/CSharp/CSharpTypePrinter.cs
@@ -381,6 +381,7 @@ namespace CppSharp.Generators.CSharp
                 case PrimitiveType.Float: return "float";
                 case PrimitiveType.Double: return "double";
                 case PrimitiveType.IntPtr: return "global::System.IntPtr";
+                case PrimitiveType.UIntPtr: return "global::System.UIntPtr";
             }
 
             throw new NotSupportedException();
diff --git a/src/Generator/Types/CppTypePrinter.cs b/src/Generator/Types/CppTypePrinter.cs
index 98f1c277..f8083593 100644
--- a/src/Generator/Types/CppTypePrinter.cs
+++ b/src/Generator/Types/CppTypePrinter.cs
@@ -111,6 +111,7 @@ namespace CppSharp.Types
                 case PrimitiveType.Float: return "float";
                 case PrimitiveType.Double: return "double";
                 case PrimitiveType.IntPtr: return "void*";
+                case PrimitiveType.UIntPtr: return "uintptr_t";
             }
 
             throw new NotSupportedException();