diff --git a/python/servo/testing_commands.py b/python/servo/testing_commands.py
index b0ef2cfa5ce..db369a82b2d 100644
--- a/python/servo/testing_commands.py
+++ b/python/servo/testing_commands.py
@@ -385,7 +385,7 @@ class MachCommands(CommandBase):
     def _test_wpt(self, **kwargs):
         hosts_file_path = path.join(self.context.topdir, 'tests', 'wpt', 'hosts')
         os.environ["hosts_file_path"] = hosts_file_path
-        run_file = path.abspath(path.join(self.context.topdir, "tests", "wpt", "run_wpt.py"))
+        run_file = path.abspath(path.join(self.context.topdir, "tests", "wpt", "run.py"))
         return self.wptrunner(run_file, **kwargs)
 
     # Helper to ensure all specified paths are handled, otherwise dispatch to appropriate test suite.
diff --git a/tests/wpt/README.md b/tests/wpt/README.md
index b8fd1d7c886..26c9639d627 100644
--- a/tests/wpt/README.md
+++ b/tests/wpt/README.md
@@ -9,8 +9,7 @@ In particular, this folder contains:
 
 * `config.ini`: some configuration for the web-platform-tests.
 * `include.ini`: the subset of web-platform-tests we currently run.
-* `run_wpt.py`: glue code to run the web-platform-tests in Servo.
-* `run.py`: common code used by `run_wpt.py`.
+* `run.py`: run the web-platform-tests in Servo.
 * `web-platform-tests`: copy of the web-platform-tests.
 * `metadata`: expected failures for the web-platform-tests we run.
 * `mozilla`: web-platform-tests that cannot be upstreamed.
@@ -49,7 +48,7 @@ test with `mach test-wpt --release`
 Running the tests without mach
 ------------------------------
 
-When avoiding `mach` for some reason, one can run `run_wpt.py`
+When avoiding `mach` for some reason, one can run `run.py`
 directly. However, this requires that all the dependencies for
 `wptrunner` are avaliable in the current python environment.
 
diff --git a/tests/wpt/run.py b/tests/wpt/run.py
index 46b5b1fab6f..e77494ae46e 100644
--- a/tests/wpt/run.py
+++ b/tests/wpt/run.py
@@ -19,15 +19,15 @@ def wpt_path(*args):
 def servo_path(*args):
     return os.path.join(servo_root, *args)
 
+paths = {"include_manifest": wpt_path("include.ini"),
+         "config": wpt_path("config.ini")}
 # Imports
 sys.path.append(wpt_path("web-platform-tests", "tools", "wptrunner"))
 from wptrunner import wptrunner, wptcommandline
 
 
-def run_tests(paths=None, **kwargs):
-    if paths is None:
-        paths = {}
-    set_defaults(paths, kwargs)
+def run_tests(**kwargs):
+    set_defaults(kwargs)
 
     mozlog.commandline.log_formatters["servo"] = \
         (grouping_formatter.GroupingFormatter, "A grouping output formatter")
@@ -47,7 +47,7 @@ def run_tests(paths=None, **kwargs):
     return 0 if success else 1
 
 
-def set_defaults(paths, kwargs):
+def set_defaults(kwargs):
     if kwargs["product"] is None:
         kwargs["product"] = "servo"
 
@@ -75,7 +75,10 @@ def set_defaults(paths, kwargs):
     wptcommandline.check_args(kwargs)
 
 
-def main(paths=None):
+def main():
     parser = wptcommandline.create_parser()
     kwargs = vars(parser.parse_args())
-    return run_tests(paths, **kwargs)
+    return run_tests(**kwargs)
+
+if __name__ == "__main__":
+    sys.exit(0 if main() else 1)
diff --git a/tests/wpt/run_wpt.py b/tests/wpt/run_wpt.py
deleted file mode 100644
index 676c5fb426d..00000000000
--- a/tests/wpt/run_wpt.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-import run
-import sys
-
-paths = {"include_manifest": run.wpt_path("include.ini"),
-         "config": run.wpt_path("config.ini")}
-
-
-def run_tests(**kwargs):
-    return run.run_tests(paths=paths, **kwargs)
-
-
-def main():
-    return run.main(paths)
-
-if __name__ == "__main__":
-    sys.exit(0 if main() else 1)