diff --git a/CHANGELOG.md b/CHANGELOG.md
index b2eb9002..c039af53 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Change log
 
+### vNext
+
+* Update/fix the existing TS `index.d.ts` declaration file.  <br/>
+  [@hwillson](https://github.com/hwillson) in [#285](https://github.com/apollographql/graphql-tag/pull/285)
+
 ### v2.10.1
 
 * Fix failures in IE11 by avoiding unsupported (by IE11) constructor arguments to `Set` by [rocwang](https://github.com/rocwang) in [#190](https://github.com/apollographql/graphql-tag/pull/190)
@@ -7,7 +12,7 @@
 ### v2.10.0
 * Add support for `graphql@14` by [timsuchanek](https://github.com/timsuchanek) in [#210](https://github.com/apollographql/graphql-tag/pull/210), [#211](https://github.com/apollographql/graphql-tag/pull/211)
 
-### v2.9.1 
+### v2.9.1
 * Fix IE11 support by using a regular for-loop by [vitorbal](https://github.com/vitorbal) in [#176](https://github.com/apollographql/graphql-tag/pull/176)
 
 ### v2.9.0
diff --git a/index.d.ts b/index.d.ts
index d010ae40..62532fff 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -1,3 +1,20 @@
-export default function gql(literals: any, ...placeholders: any[]): any;
-export function resetCaches(): void;
-export function disableFragmentWarnings(): void;
+declare module "graphql-tag" {
+  function gql(
+    literals: ReadonlyArray<string>,
+    ...placeholders: any[]
+  ): import("graphql").DocumentNode
+
+  namespace gql {
+    function resetCaches(): void;
+    function disableFragmentWarnings(): void;
+    function enableExperimentalFragmentVariables(): void;
+    function disableExperimentalFragmentVariables(): void;
+  }
+
+  export default gql;
+
+  export function resetCaches(): void;
+  export function disableFragmentWarnings(): void;
+  export function enableExperimentalFragmentVariables(): void;
+  export function disableExperimentalFragmentVariables(): void;
+}