diff --git a/bower.json b/bower.json
index f2fdbe8..ea128af 100644
--- a/bower.json
+++ b/bower.json
@@ -19,6 +19,6 @@
     "purescript-console": "^2.0.0",
     "purescript-foldable-traversable": "^2.0.0",
     "purescript-exceptions": "~2.0.0",
-    "purescript-spec": "^0.10.0"
+    "purescript-spec": "^0.11.0"
   }
 }
diff --git a/karma.conf.js b/karma.conf.js
index cfe3571..2e6f8c7 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -33,7 +33,7 @@ module.exports = function(config) {
     // test results reporter to use
     // possible values: 'dots', 'progress'
     // available reporters: https://npmjs.org/browse/keyword/karma-reporter
-    reporters: ['progress', 'bdd'],
+    reporters: ['progress'],
 
 
     // web server port
diff --git a/src/Test/Spec/Mocha.js b/src/Test/Spec/Mocha.js
index fe40c36..6219964 100644
--- a/src/Test/Spec/Mocha.js
+++ b/src/Test/Spec/Mocha.js
@@ -2,21 +2,24 @@
 
 // module Test.Spec.Mocha
 
-if (!describe || !it) {
+if (typeof describe !== 'function' || typeof it !== 'function') {
     throw new Error('Mocha globals seem to be unavailable!');
 }
 
-exports.itAsync = function (name) {
+exports.itAsync = function (only) {
     "use strict";
-    return function (aff) {
-        return function () {
-            it(name, function (done) {
-                aff(function () {
-                    done();
-                }, function (err) {
-                    done(err);
-                })
-            });
+    return function (name) {
+        return function (aff) {
+            return function () {
+                var f = only ? it.only : it;
+                f(name, function (done) {
+                    aff(function () {
+                        done();
+                    }, function (err) {
+                        done(err);
+                    });
+                });
+            };
         };
     };
 };
@@ -28,13 +31,16 @@ exports.itPending = function (name) {
     };
 };
 
-exports.describe = function (name) {
+exports.describe = function (only) {
     "use strict";
-    return function (nested) {
-        return function () {
-            describe(name, function () {
-                nested();
-            });
+    return function (name) {
+        return function (nested) {
+            return function () {
+                var f = only ? describe : describe.only;
+                f(name, function () {
+                    nested();
+                });
+            };
         };
     };
 };
diff --git a/src/Test/Spec/Mocha.purs b/src/Test/Spec/Mocha.purs
index 6a39b0e..bfbbca6 100644
--- a/src/Test/Spec/Mocha.purs
+++ b/src/Test/Spec/Mocha.purs
@@ -14,23 +14,27 @@ import Test.Spec                   (Spec, Group(..), collect)
 
 foreign import data MOCHA :: !
 
-foreign import itAsync :: forall e. String
-                          -> Aff e Unit
-                          -> Eff (mocha :: MOCHA | e) Unit
+foreign import itAsync :: forall e.
+                          Boolean
+                       -> String
+                       -> Aff e Unit
+                       -> Eff (mocha :: MOCHA | e) Unit
 
 foreign import itPending :: forall e. String
                          -> Eff (mocha :: MOCHA | e) Unit
 
-foreign import describe :: forall e. String
+foreign import describe :: forall e.
+                           Boolean
+                        -> String
                         -> Eff (mocha :: MOCHA | e) Unit
                         -> Eff (mocha :: MOCHA | e) Unit
 
 registerGroup :: forall e. (Group (Aff e Unit))
               -> Eff (mocha :: MOCHA | e) Unit
-registerGroup (It name test) = itAsync name test
+registerGroup (It only name test) = itAsync only name test
 registerGroup (Pending name) = itPending name
-registerGroup (Describe name groups) =
-  describe name (traverse_ registerGroup groups)
+registerGroup (Describe only name groups) =
+  describe only name (traverse_ registerGroup groups)
 
 runMocha :: forall e. Spec e Unit
             -> Eff (mocha :: MOCHA | e) Unit
diff --git a/test/Main.purs b/test/Main.purs
index d4b95c7..06c1924 100644
--- a/test/Main.purs
+++ b/test/Main.purs
@@ -1,13 +1,13 @@
 module Test.Main where
 
 import Prelude
-
 import Control.Monad.Aff (later')
-
-import Test.Spec (describe, it, pending)
+import Control.Monad.Eff (Eff)
+import Test.Spec (SpecEffects, describe, it, pending)
 import Test.Spec.Assertions (shouldEqual)
-import Test.Spec.Mocha (runMocha)
+import Test.Spec.Mocha (MOCHA, runMocha)
 
+main :: Eff (SpecEffects (mocha :: MOCHA)) Unit
 main = runMocha do
   describe "test" $
     describe "nested" do