diff --git a/tests/test_process_watch.rb b/tests/test_process_watch.rb
index 140f7edac..f111f07dd 100644
--- a/tests/test_process_watch.rb
+++ b/tests/test_process_watch.rb
@@ -2,47 +2,49 @@
 require 'eventmachine'
 require 'test/unit'
 
-class TestProcessWatch < Test::Unit::TestCase
-  module ParentProcessWatcher
-    def process_forked
-      $forked = true
+if EM.kqueue?
+  class TestProcessWatch < Test::Unit::TestCase
+    module ParentProcessWatcher
+      def process_forked
+        $forked = true
+      end
     end
-  end
 
-  module ChildProcessWatcher
-    def process_exited
-      $exited = true
-    end
-    def unbind
-      $unbind = true
-      EM.stop
+    module ChildProcessWatcher
+      def process_exited
+        $exited = true
+      end
+      def unbind
+        $unbind = true
+        EM.stop
+      end
     end
-  end
 
-  def setup
-    EM.kqueue = true if EM.kqueue?
-  end
+    def setup
+      EM.kqueue = true
+    end
 
-  def teardown
-    EM.kqueue = false if EM.kqueue?
-  end
+    def teardown
+      EM.kqueue = false
+    end
 
-  def test_events
-    EM.run{
-      # watch ourselves for a fork notification
-      EM.watch_process(Process.pid, ParentProcessWatcher)
-      $fork_pid = fork{ sleep }
-      child = EM.watch_process($fork_pid, ChildProcessWatcher)
-      $pid = child.pid
+    def test_events
+      EM.run{
+        # watch ourselves for a fork notification
+        EM.watch_process(Process.pid, ParentProcessWatcher)
+        $fork_pid = fork{ sleep }
+        child = EM.watch_process($fork_pid, ChildProcessWatcher)
+        $pid = child.pid
 
-      EM.add_timer(0.2){
-        Process.kill('TERM', $fork_pid)
+        EM.add_timer(0.2){
+          Process.kill('TERM', $fork_pid)
+        }
       }
-    }
 
-    assert_equal($pid, $fork_pid)
-    assert($forked)
-    assert($exited)
-    assert($unbind)
+      assert_equal($pid, $fork_pid)
+      assert($forked)
+      assert($exited)
+      assert($unbind)
+    end
   end
-end
\ No newline at end of file
+end