diff --git a/sphinx_click/ext.py b/sphinx_click/ext.py
index 32903eb..f1ddd36 100644
--- a/sphinx_click/ext.py
+++ b/sphinx_click/ext.py
@@ -88,7 +88,7 @@ def _write_opts(opts):
             )
 
     if isinstance(opt.type, click.Choice):
-        extras.append(':options: %s' % ' | '.join(opt.type.choices))
+        extras.append(':options: %s' % ' | '.join(str(x) for x in opt.type.choices))
 
     if extras:
         if out:
diff --git a/tests/test_formatter.py b/tests/test_formatter.py
index f6c7a7a..43496e8 100644
--- a/tests/test_formatter.py
+++ b/tests/test_formatter.py
@@ -8,6 +8,8 @@
 class CommandTestCase(unittest.TestCase):
     """Validate basic ``click.Command`` instances."""
 
+    maxDiff = None
+
     def test_no_parameters(self):
         """Validate a `click.Command` with no parameters.
 
@@ -52,6 +54,12 @@ def test_basic_parameters(self):
             help='A sample option with choices',
             type=click.Choice(['Option1', 'Option2']),
         )
+        @click.option(
+            '--numeric-choice',
+            metavar='<choice>',
+            help='A sample option with numeric choices',
+            type=click.Choice([1, 2, 3]),
+        )
         @click.argument('ARG', envvar='ARG')
         def foobar(bar):
             """A sample command."""
@@ -86,6 +94,12 @@ def foobar(bar):
 
             :options: Option1 | Option2
 
+        .. option:: --numeric-choice <choice>
+
+            A sample option with numeric choices
+
+            :options: 1 | 2 | 3
+
         .. rubric:: Arguments
 
         .. option:: ARG