diff --git a/HISTORY.rst b/HISTORY.rst
index a6b76a86..39c5c828 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -10,6 +10,8 @@ Release History
 * Disable project auto-clean while building/uploading firmware using
   `platformio run --disable-auto-clean <http://docs.platformio.org/en/latest/userguide/cmd_run.html#cmdoption--disable-auto-clean>`_ option
   (`issue #255 <https://github.com/platformio/platformio/issues/255>`_)
+* Show internal errors from "Miniterm" using `platformio serialports monitor <http://docs.platformio.org/en/latest/userguide/cmd_serialports.html#platformio-serialports-monitor>`__ command
+  (`issue #257 <https://github.com/platformio/platformio/issues/257>`_)
 * Fixed `platformio serialports monitor --help <http://docs.platformio.org/en/latest/userguide/cmd_serialports.html#platformio-serialports-monitor>`__ information with HEX char for hotkeys
   (`issue #253 <https://github.com/platformio/platformio/issues/253>`_)
 * Handle "OSError: [Errno 13] Permission denied" for PlatformIO installer script
diff --git a/platformio/commands/serialports.py b/platformio/commands/serialports.py
index 33bbe4e6..33dea746 100644
--- a/platformio/commands/serialports.py
+++ b/platformio/commands/serialports.py
@@ -7,6 +7,7 @@ import sys
 import click
 from serial.tools import miniterm
 
+from platformio.exception import PlatformioException
 from platformio.util import get_serialports
 
 
@@ -78,5 +79,5 @@ def serialports_monitor(**kwargs):
 
     try:
         miniterm.main()
-    except:  # pylint: disable=W0702
-        pass
+    except Exception as e:  # pylint: disable=W0702
+        raise PlatformioException(str(e))