diff --git a/HISTORY.rst b/HISTORY.rst
index 88975168..ead20705 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -11,6 +11,7 @@ PlatformIO Core 4.0
 
 * Extend project environment configuration in "platformio.ini" with other sections using a new `extends <http://docs.platformio.org/page/projectconf/section_env_advanced.html#extends>`__ option (`issue #2953 <https://github.com/platformio/platformio-core/issues/2953>`_)
 * Fixed an issue with project generator for `CLion IDE <http://docs.platformio.org/page/ide/clion.html>`__ when 2 environments were used (`issue #2824 <https://github.com/platformio/platformio-core/issues/2824>`_)
+* Fixed default PIO Unified Debugger configuration for `J-Link probe <http://docs.platformio.org/en/latest/plus/debug-tools/jlink.html>`__
 
 4.0.3 (2019-08-30)
 ~~~~~~~~~~~~~~~~~~
diff --git a/platformio/commands/debug/initcfgs.py b/platformio/commands/debug/initcfgs.py
index a9d71d32..9b70babe 100644
--- a/platformio/commands/debug/initcfgs.py
+++ b/platformio/commands/debug/initcfgs.py
@@ -60,7 +60,6 @@ target extended-remote $DEBUG_PORT
 $INIT_BREAK
 pio_reset_halt_target
 $LOAD_CMDS
-pio_reset_halt_target
 """
 
 GDB_BLACKMAGIC_INIT_CONFIG = """