--- WebIDL.py
+++ WebIDL.py
@@ -2549,6 +2549,17 @@ class IDLType(IDLObject):
         "object",
         # Funny stuff
         "interface",
+        "int8array",
+        "uint8array",
+        "int16array",
+        "uint16array",
+        "int32array",
+        "uint32array",
+        "float32array",
+        "float64array",
+        "arrayBuffer",
+        "arrayBufferView",
+        "uint8clampedarray",
         "dictionary",
         "enum",
         "callback",
@@ -3842,17 +3853,17 @@ class IDLBuiltinType(IDLType):
         Types.utf8string: IDLType.Tags.utf8string,
         Types.jsstring: IDLType.Tags.jsstring,
         Types.object: IDLType.Tags.object,
-        Types.ArrayBuffer: IDLType.Tags.interface,
-        Types.ArrayBufferView: IDLType.Tags.interface,
-        Types.Int8Array: IDLType.Tags.interface,
-        Types.Uint8Array: IDLType.Tags.interface,
-        Types.Uint8ClampedArray: IDLType.Tags.interface,
-        Types.Int16Array: IDLType.Tags.interface,
-        Types.Uint16Array: IDLType.Tags.interface,
-        Types.Int32Array: IDLType.Tags.interface,
-        Types.Uint32Array: IDLType.Tags.interface,
-        Types.Float32Array: IDLType.Tags.interface,
-        Types.Float64Array: IDLType.Tags.interface,
+        Types.ArrayBuffer: IDLType.Tags.arrayBuffer,
+        Types.ArrayBufferView: IDLType.Tags.arrayBufferView,
+        Types.Int8Array: IDLType.Tags.int8array,
+        Types.Uint8Array: IDLType.Tags.uint8array,
+        Types.Uint8ClampedArray: IDLType.Tags.uint8clampedarray,
+        Types.Int16Array: IDLType.Tags.int16array,
+        Types.Uint16Array: IDLType.Tags.uint16array,
+        Types.Int32Array: IDLType.Tags.int32array,
+        Types.Uint32Array: IDLType.Tags.uint32array,
+        Types.Float32Array: IDLType.Tags.float32array,
+        Types.Float64Array: IDLType.Tags.float64array,
         Types.ReadableStream: IDLType.Tags.interface,
     }