diff --git a/nock/nock-tests.ts b/nock/nock-tests.ts
index a209a8c941..00227dfaff 100644
--- a/nock/nock-tests.ts
+++ b/nock/nock-tests.ts
@@ -72,7 +72,10 @@ inst = inst.twice();
 inst = inst.thrice();
 
 inst = inst.defaultReplyHeaders(value);
+
 inst = inst.matchHeader(str, str);
+inst = inst.matchHeader(str, regex);
+inst = inst.matchHeader(str, (val: string) => true);
 
 inst = inst.delay(num);
 inst = inst.delayConnection(num);
@@ -105,4 +108,4 @@ nock.recorder.rec({
 });
 
 strings = nock.recorder.play();
-objects = nock.recorder.play();
\ No newline at end of file
+objects = nock.recorder.play();
diff --git a/nock/nock.d.ts b/nock/nock.d.ts
index bcf4560ce3..b6803ca890 100644
--- a/nock/nock.d.ts
+++ b/nock/nock.d.ts
@@ -55,7 +55,10 @@ declare module "nock" {
 			replyWithFile(responseCode: number, fileName: string): Scope;
 
 			defaultReplyHeaders(headers: Object): Scope;
+			
 			matchHeader(name: string, value: string): Scope;
+			matchHeader(name: string, regex: RegExp): Scope;
+			matchHeader(name: string, fn: (value: string) => boolean): Scope;
 
 			filteringPath(regex: RegExp, replace: string): Scope;
 			filteringPath(fn: (path: string) => string): Scope;