diff --git a/packages/babel-types/src/definitions/flow.js b/packages/babel-types/src/definitions/flow.js
index d01da22505..95f9b40077 100644
--- a/packages/babel-types/src/definitions/flow.js
+++ b/packages/babel-types/src/definitions/flow.js
@@ -233,6 +233,14 @@ defineType("TypeCastExpression", {
   }
 });
 
+defineType("TypeParameter", {
+  visitor: ["name", "bound"],
+  aliases: ["Flow"],
+  fields: {
+    // todo
+  }
+});
+
 defineType("TypeParameterDeclaration", {
   visitor: ["params"],
   aliases: ["Flow"],