diff --git a/README.md b/README.md
index 20b34cf..48491d2 100644
--- a/README.md
+++ b/README.md
@@ -151,8 +151,23 @@ addopts = --maxfail=2
 [pytest-watch]
 ignore = ./integration-tests
 nobeep = True
+ext = .py,.txt
 ```
 
+CLI options can also be added to a `[tool.pytest-watch]` section in your
+[pyproject.toml file](https://pytest.org/en/stable/customize.html#pyproject-toml):
+
+```toml
+# pyproject.toml
+
+[tool.pytest.ini_options]
+addopts = "-ra -q"
+
+[tool.pytest-watch]
+ignore = "./integration-tests"
+nobeep = true
+ext = [ ".py", ".txt" ]
+```
 
 Alternatives
 ------------
diff --git a/README.rst b/README.rst
index 60f12f4..9ab0391 100644
--- a/README.rst
+++ b/README.rst
@@ -153,6 +153,23 @@ persist them in your project. For example:
    [pytest-watch]
    ignore = ./integration-tests
    nobeep = True
+   ext = .py,.txt
+
+CLI options can also be added to a ``[tool.pytest-watch]`` section in
+your `pyproject.toml
+file <https://pytest.org/en/stable/customize.html#pyproject-toml>`__:
+
+.. code:: toml
+
+   # pyproject.toml
+
+   [tool.pytest.ini_options]
+   addopts = "-ra -q"
+
+   [tool.pytest-watch]
+   ignore = "./integration-tests"
+   nobeep = true
+   ext = [ ".py", ".txt" ]
 
 Alternatives
 ------------
diff --git a/pytest_watch/config.py b/pytest_watch/config.py
index cd11c46..f0d28f0 100644
--- a/pytest_watch/config.py
+++ b/pytest_watch/config.py
@@ -6,6 +6,8 @@
 
 from .util import silence
 
+import toml
+
 try:
     from configparser import ConfigParser
 except ImportError:
@@ -79,6 +81,20 @@ def _collect_config(pytest_args, silent=True):
     return _run_pytest_collect(pytest_args)
 
 
+def _parse_toml_config(path):
+    config = toml.load(path).get('tool', {}).get('pytest-watch', {})
+    stringify = lambda v: ','.join(v) if isinstance(v, list) else str(v)
+    return {k: stringify(v) for k, v in config.items()}
+
+
+def _parse_ini_config(path):
+    config = ConfigParser()
+    config.read(path)
+    if config.has_section('pytest-watch'):
+        return dict(config.items('pytest-watch'))
+    return {}
+
+
 def merge_config(args, pytest_args, silent=True, verbose=False):
     if verbose:
         print('Locating inifile...')
@@ -91,9 +107,14 @@ def merge_config(args, pytest_args, silent=True, verbose=False):
     if not config_path:
         return True
 
-    config = ConfigParser()
-    config.read(config_path)
-    if not config.has_section('pytest-watch'):
+    if config_path.endswith('.toml'):
+        config = _parse_toml_config(config_path)
+    elif config_path.endswith('.ini'):
+        config = _parse_ini_config(config_path)
+    else:
+        config = {}
+
+    if not config:
         return True
 
     for cli_name in args:
@@ -106,15 +127,15 @@ def merge_config(args, pytest_args, silent=True, verbose=False):
             continue
 
         # Find config option
-        if not config.has_option('pytest-watch', config_name):
+        if not config_name in config:
             continue
 
         # Merge config option using the expected type
         if isinstance(args[cli_name], list):
-            args[cli_name].append(config.get('pytest-watch', config_name))
+            args[cli_name].append(config.get(config_name))
         elif isinstance(args[cli_name], bool):
-            args[cli_name] = config.getboolean('pytest-watch', config_name)
+            args[cli_name] = config.get(config_name).lower() != 'false'
         else:
-            args[cli_name] = config.get('pytest-watch', config_name)
+            args[cli_name] = config.get(config_name)
 
     return True