diff --git a/lib/functions.php b/lib/functions.php
index c971b46..874ed08 100644
--- a/lib/functions.php
+++ b/lib/functions.php
@@ -19,13 +19,13 @@ function task() {
 
 function group($name, $lambda = null) {
     $thrown = null;
-    builder()->push_group($name);
+    $levels = builder()->push_group($name);
     try {
         if ($lambda instanceof Closure) $lambda();
     } catch (\Exception $e) {
         $thrown = $e;
     }
-    builder()->pop_group();
+    builder()->pop_group($levels);
     if ($thrown) {
         throw $e;
     }
diff --git a/lib/phake/Builder.php b/lib/phake/Builder.php
index ab37d50..e242b33 100644
--- a/lib/phake/Builder.php
+++ b/lib/phake/Builder.php
@@ -53,11 +53,15 @@ public function add_task($name, $work, $deps) {
     }
 
     public function push_group($name) {
-        $this->target_node = $this->target_node->child_with_name($name);
+        $levels = 0;
+        $this->target_node = $this->target_node->child_with_name($name, $levels);
+        return $levels;
     }
 
-    public function pop_group() {
-        $this->target_node = $this->target_node->get_parent();
+    public function pop_group($levels = 1) {
+        for ($i = 0; $i < $levels; $i++) {
+            $this->target_node = $this->target_node->get_parent();
+        }
     }
 
     public function before($name, $lambda) {
diff --git a/lib/phake/Node.php b/lib/phake/Node.php
index 6e97d29..3eab0ed 100644
--- a/lib/phake/Node.php
+++ b/lib/phake/Node.php
@@ -49,7 +49,7 @@ public function get_root() {
         return $root;
     }
 
-    public function child_with_name($task_name) {
+    public function child_with_name($task_name, &$levels = 0) {
         $parts = explode(':', $task_name);
 
         $task = $this;
@@ -60,6 +60,8 @@ public function child_with_name($task_name) {
             $task = $task->children[$part];
         }
 
+        $levels = sizeof($parts);
+
         return $task;
     }
 
@@ -132,7 +134,7 @@ public function has_body() {
 
     public function get_task($task_name) {
         if ($task_name[0] != ':') {
-            
+
             $parts = explode(':', $task_name);
 
             $task = $this;
diff --git a/tests/BuilderTest.php b/tests/BuilderTest.php
index 57e378a..7cda966 100644
--- a/tests/BuilderTest.php
+++ b/tests/BuilderTest.php
@@ -76,6 +76,7 @@ public function testGroups()
         $this->expectOutputString(<<<EOF
 a:b
 b:a
+y:z:a
 
 EOF
 );
diff --git a/tests/fixtures/groups.php b/tests/fixtures/groups.php
index f491911..421ee37 100644
--- a/tests/fixtures/groups.php
+++ b/tests/fixtures/groups.php
@@ -1,9 +1,13 @@
 <?php
 
+group('y:z', function() {
+  task('a', function () { echo "y:z:a\n"; });
+});
+
 task('a:b', function () { echo "a:b\n"; });
 
 group('b', function () {
     task('a', function () { echo "b:a\n"; });
 });
 
-task('default', 'a:b', 'b:a');
\ No newline at end of file
+task('default', 'a:b', 'b:a', 'y:z:a');