diff --git a/urijs/URI-tests.ts b/urijs/URI-tests.ts
index 75e999140..0c5efc8c7 100644
--- a/urijs/URI-tests.ts
+++ b/urijs/URI-tests.ts
@@ -26,4 +26,9 @@ new URI({
     fragment: 'frag'
 });
 
+URI('').setQuery('foo', 'bar');
+URI('').setQuery({ foo: 'bar' });
+URI('').setSearch('foo', 'bar');
+URI('').setSearch({ foo: 'bar' });
+
 var uri: uri.URI = $('a').uri();
diff --git a/urijs/URI.d.ts b/urijs/URI.d.ts
index b140df400..f745c6164 100644
--- a/urijs/URI.d.ts
+++ b/urijs/URI.d.ts
@@ -97,6 +97,10 @@ declare module uri {
         segment(position: number): string;
         segment(position: number, level: string): string;
         segment(level: string): string;
+        setQuery(key: string, value: string): URI;
+        setQuery(qry: Object): URI;
+        setSearch(key: string, value: string): URI;
+        setSearch(qry: Object): URI;
         subdomain(): string;
         subdomain(subdomain: string): URI;
         suffix(): string;