diff --git a/index.d.ts b/index.d.ts
new file mode 100644
index 0000000..fa853c3
--- /dev/null
+++ b/index.d.ts
@@ -0,0 +1,29 @@
+declare module 'http-headers' {
+
+  export interface HttpVersion {
+    major: number;
+    minor: number;
+  }
+
+  interface BareHttpHeaders {
+    [name: string]: string;
+  }
+
+  export interface RequestHttpHeaders {
+    method: string;
+    url: string;
+    version: HttpVersion;
+    headers: BareHttpHeaders;
+  }
+
+  export interface ResponseHttpHeaders {
+    version: HttpVersion;
+    statusCode: number;
+    statusMessage: string;
+    headers: BareHttpHeaders;
+  }
+
+  function parse(data: string, onlyHeaders?: boolean): BareHttpHeaders | RequestHttpHeaders | ResponseHttpHeaders;
+
+  export default parse;
+}