diff --git a/lib/exchange/clientCredentials.js b/lib/exchange/clientCredentials.js
index 4963dbc4..142d33da 100644
--- a/lib/exchange/clientCredentials.js
+++ b/lib/exchange/clientCredentials.js
@@ -53,7 +53,7 @@ var utils = require('../utils')
  * @return {Function}
  * @api public
  */
-module.exports = function clientCredentials(options, issue) {
+module.exports = function(options, issue) {
   if (typeof options == 'function') {
     issue = options;
     options = undefined;
@@ -112,11 +112,15 @@ module.exports = function clientCredentials(options, issue) {
       res.end(json);
     }
     
-    var arity = issue.length;
-    if (arity == 3) {
-      issue(client, scope, issued);
-    } else { // arity == 2
-      issue(client, issued);
+    try {
+      var arity = issue.length;
+      if (arity == 3) {
+        issue(client, scope, issued);
+      } else { // arity == 2
+        issue(client, issued);
+      }
+    } catch (ex) {
+      return next(ex);
     }
   }
 }
diff --git a/test/exchange/authorizationCode.test.js b/test/exchange/authorizationCode.test.js
index 83b5ee10..a3ed3406 100644
--- a/test/exchange/authorizationCode.test.js
+++ b/test/exchange/authorizationCode.test.js
@@ -211,7 +211,7 @@ describe('exchange.authorizationCode', function() {
     });
   });
   
-  describe('encountering an error while issuing an access token', function() {
+  describe('encountering an exception while issuing an access token', function() {
     var response, err;
 
     before(function(done) {
diff --git a/test/exchange/clientCredentials.test.js b/test/exchange/clientCredentials.test.js
index f3e16f5c..d4a2849a 100644
--- a/test/exchange/clientCredentials.test.js
+++ b/test/exchange/clientCredentials.test.js
@@ -15,6 +15,8 @@ describe('exchange.clientCredentials', function() {
       return done(null, 's3cr1t', 'blahblag', { 'token_type': 'foo', 'expires_in': 3600 })
     } else if (client.id == 'cUN') {
       return done(null, false)
+    } else if (client.id == 'cTHROW') {
+      throw new Error('something was thrown')
     }
     return done(new Error('something is wrong'));
   }
@@ -252,6 +254,28 @@ describe('exchange.clientCredentials', function() {
     });
   });
   
+  describe('encountering an exception while issuing an access token', function() {
+    var response, err;
+
+    before(function(done) {
+      chai.connect(clientCredentials(issue))
+        .req(function(req) {
+          req.user = { id: 'cTHROW', name: 'Example' };
+          req.body = {};
+        })
+        .next(function(e) {
+          err = e;
+          done();
+        })
+        .dispatch();
+    });
+    
+    it('should error', function() {
+      expect(err).to.be.an.instanceOf(Error);
+      expect(err.message).to.equal('something was thrown');
+    });
+  });
+  
   describe('handling a request without a body', function() {
     var response, err;