diff --git a/vunit/ghdl_interface.py b/vunit/ghdl_interface.py
index 9932e074a..18e8bae5f 100644
--- a/vunit/ghdl_interface.py
+++ b/vunit/ghdl_interface.py
@@ -10,14 +10,15 @@
 
 from __future__ import print_function
 import logging
-from os.path import exists, join
+from os.path import exists, join, abspath
 import os
 import subprocess
 import shlex
 from sys import stdout  # To avoid output catched in non-verbose mode
 from vunit.ostools import Process
 from vunit.simulator_interface import (SimulatorInterface,
-                                       ListOfStringOption)
+                                       ListOfStringOption,
+                                       StringOption)
 from vunit.exceptions import CompileError
 LOGGER = logging.getLogger(__name__)
 
@@ -39,6 +40,7 @@ class GHDLInterface(SimulatorInterface):
     sim_options = [
         ListOfStringOption("ghdl.sim_flags"),
         ListOfStringOption("ghdl.elab_flags"),
+        StringOption("ghdl.gtkwave_script.gui"),
     ]
 
     @staticmethod
@@ -247,6 +249,11 @@ def simulate(self,  # pylint: disable=too-many-locals
 
         if self._gui and not elaborate_only:
             cmd = ["gtkwave"] + shlex.split(self._gtkwave_args) + [data_file_name]
+
+            init_file = config.sim_options.get(self.name + ".gtkwave_script.gui", None)
+            if init_file is not None:
+                cmd += ["--script", "\"{}\"".format(abspath(init_file))]
+
             stdout.write("%s\n" % " ".join(cmd))
             subprocess.call(cmd)
 
diff --git a/vunit/ui.py b/vunit/ui.py
index c9b03fc29..3ba99b9b9 100644
--- a/vunit/ui.py
+++ b/vunit/ui.py
@@ -191,6 +191,14 @@
    Extra simulation flags passed to ``ghdl --elab-run``.
    Must be a list of strings.
 
+``ghdl.gtkwave_script.gui``
+   A user defined TCL-file that is sourced after the design has been loaded in the GUI.
+   For example this can be used to configure the waveform viewer. Must be a string.
+   There are currently limitations in the HEAD revision of GTKWave that prevent the
+   user from sourcing a list of scripts directly. The following is the current work
+   around to sourcing multiple user TCL-files:
+   ``source <path/to/script.tcl>``
+
 .. |compile_option| replace::
    The name of the compile option (See :ref:`Compilation options <compile_options>`)