diff --git a/HISTORY.rst b/HISTORY.rst
index 40b52b6e..b559f1a4 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -30,6 +30,8 @@ PlatformIO 2.0
 * Fixed project generator for CLion IDE under Windows OS with invalid path to
   executable
   (`issue #326 <https://github.com/platformio/platformio/issues/326>`_)
+* Fixed empty list with serial ports on Mac OS X
+  (`issue #294 <https://github.com/platformio/platformio/issues/294>`_)
 
 2.3.4 (2015-10-13)
 ~~~~~~~~~~~~~~~~~~
diff --git a/platformio/__init__.py b/platformio/__init__.py
index ebf084d0..e78f7e30 100644
--- a/platformio/__init__.py
+++ b/platformio/__init__.py
@@ -1,7 +1,7 @@
 # Copyright (C) Ivan Kravets <me@ikravets.com>
 # See LICENSE for details.
 
-VERSION = (2, 4, "0.dev3")
+VERSION = (2, 4, "0.dev4")
 __version__ = ".".join([str(s) for s in VERSION])
 
 __title__ = "platformio"
diff --git a/platformio/util.py b/platformio/util.py
index 63091fe3..154b4a98 100644
--- a/platformio/util.py
+++ b/platformio/util.py
@@ -247,8 +247,13 @@ def get_serialports():
         from serial.tools.list_ports import comports
     except ImportError:
         raise exception.GetSerialPortsError(os.name)
-    return [{"port": p, "description": d, "hwid": h}
-            for p, d, h in comports() if p]
+    result = [{"port": p, "description": d, "hwid": h}
+              for p, d, h in comports() if p]
+    # fix for PySerial
+    if not result and system() == "Darwin":
+        for p in glob("/dev/tty.*"):
+            result.append({"port": p, "description": "", "hwid": ""})
+    return result
 
 
 def get_logicaldisks():