diff --git a/es6/index.d.ts b/es6/index.d.ts
new file mode 100644
index 0000000..0fc8d3b
--- /dev/null
+++ b/es6/index.d.ts
@@ -0,0 +1,2 @@
+const equal: (a: any, b: any) => boolean;
+export = equal;
diff --git a/es6/react.d.ts b/es6/react.d.ts
new file mode 100644
index 0000000..0fc8d3b
--- /dev/null
+++ b/es6/react.d.ts
@@ -0,0 +1,2 @@
+const equal: (a: any, b: any) => boolean;
+export = equal;
diff --git a/react.d.ts b/react.d.ts
new file mode 100644
index 0000000..0fc8d3b
--- /dev/null
+++ b/react.d.ts
@@ -0,0 +1,2 @@
+const equal: (a: any, b: any) => boolean;
+export = equal;