diff --git a/rest/rest-tests.ts b/rest/rest-tests.ts
index 00ce6b3db..813a06785 100644
--- a/rest/rest-tests.ts
+++ b/rest/rest-tests.ts
@@ -118,25 +118,25 @@ var promiseOrResponse = interceptor({
 });
 
 client = rest
-    .wrap<any>(defaultRequest)
-    .wrap<any>(hateoas)
-    .wrap<any>(location)
-    .wrap<any>(mime)
-    .wrap<any>(pathPrefix)
-    .wrap<any>(basicAuth)
-    .wrap<any>(oAuth)
-    .wrap<any>(csrf)
-    .wrap<any>(errorCode)
-    .wrap<any>(retry)
-    .wrap<any>(template, { template: 'auth={token}', params: { token: 'hunter2' } })
-    .wrap<any>(timeout)
-    .wrap<any>(jsonp)
-    .wrap<any>(xdomain)
-    .wrap<any>(xhr)
-    .wrap<any>(noop)
-    .wrap<any>(fail)
-    .wrap<any>(knownConfig, { prop: 'value' })
-    .wrap<any>(transformedConfig, { prop: 'value' });
+    .wrap(defaultRequest)
+    .wrap(hateoas)
+    .wrap(location)
+    .wrap(mime)
+    .wrap(pathPrefix)
+    .wrap(basicAuth)
+    .wrap(oAuth)
+    .wrap(csrf)
+    .wrap(errorCode)
+    .wrap(retry)
+    .wrap(template, { template: 'auth={token}', params: { token: 'hunter2' } })
+    .wrap(timeout)
+    .wrap(jsonp)
+    .wrap(xdomain)
+    .wrap(xhr)
+    .wrap(noop)
+    .wrap(fail)
+    .wrap<KnownConfig>(knownConfig, { prop: 'value' })
+    .wrap(transformedConfig, { prop: 'value' });
 
 import xhrClient = require('rest/client/xhr');
 import nodeClient = require('rest/client/node');
diff --git a/rest/rest.d.ts b/rest/rest.d.ts
index 49428d534..e000e1e93 100644
--- a/rest/rest.d.ts
+++ b/rest/rest.d.ts
@@ -263,7 +263,9 @@ declare module "rest/interceptor/template" {
 	module template {
 		interface Config {
 			template?: string;
-			params?: {};
+			params?: {
+				[name: string]: any;
+			};
 		}
 	}