diff --git a/src/message.js b/src/message.js
index 387e0b59..ee5248b2 100644
--- a/src/message.js
+++ b/src/message.js
@@ -32,7 +32,7 @@ import enums from './enums.js';
 import armor from './encoding/armor.js';
 import config from './config';
 import crypto from './crypto';
-import signature from './signature.js';
+import * as sigModule from './signature.js';
 import * as keyModule from './key.js';
 
 /**
@@ -376,7 +376,7 @@ Message.prototype.signDetached = function(privateKeys) {
     packetlist.push(signaturePacket);
   }
 
-  return new signature.Signature(packetlist);
+  return new sigModule.Signature(packetlist);
 };
 
 
diff --git a/test/general/signature.js b/test/general/signature.js
index 15c72784..6f58375a 100644
--- a/test/general/signature.js
+++ b/test/general/signature.js
@@ -595,7 +595,7 @@ describe("Signature", function() {
     expect(pubKey.users[0].selfCertifications).to.eql(pubKey2.users[0].selfCertifications);
   });
 
-  it('Verify a detached signature', function() {
+  it('Verify a detached signature using readSignedContent', function() {
     var detachedSig = ['-----BEGIN PGP SIGNATURE-----',
       'Version: GnuPG v1.4.13 (Darwin)',
       'Comment: GPGTools - https://gpgtools.org',
@@ -641,6 +641,30 @@ describe("Signature", function() {
     expect(result[0].valid).to.be.true;
   });
 
+  it('Detached signature signing and verification cleartext', function () {
+    var msg = openpgp.message.fromText('hello');
+    var pubKey2 = openpgp.key.readArmored(pub_key_arm2).keys[0];
+    var privKey2 = openpgp.key.readArmored(priv_key_arm2).keys[0];
+    privKey2.decrypt('hello world');
+
+    var detachedSig = msg.signDetached([privKey2]);
+
+    var result = msg.verifyDetached(detachedSig, [pubKey2]);
+    expect(result[0].valid).to.be.true;
+  });
+
+  it('Detached signature signing and verification encrypted', function () {
+    var msg = openpgp.message.fromText('hello');
+    var pubKey2 = openpgp.key.readArmored(pub_key_arm2).keys[0];
+    var privKey2 = openpgp.key.readArmored(priv_key_arm2).keys[0];
+    privKey2.decrypt('hello world');
+    msg.encrypt({keys: [pubKey2] });
+
+    var detachedSig = msg.signDetached([privKey2]);
+    var result = msg.verifyDetached(detachedSig, [pubKey2]);
+    expect(result[0].valid).to.be.true;
+  });
+
   it('Sign message with key without password', function(done) {
     var opt = {numBits: 512, userIds: { name:'test', email:'a@b.com' }, passphrase: null};
     if (openpgp.util.getWebCryptoAll()) { opt.numBits = 2048; } // webkit webcrypto accepts minimum 2048 bit keys