diff --git a/doc/en/assert.rst b/doc/en/assert.rst
index cd2a944f5..fb951dd28 100644
--- a/doc/en/assert.rst
+++ b/doc/en/assert.rst
@@ -192,8 +192,8 @@ provides an alternative explanation for ``Foo`` objects::
    from test_foocompare import Foo
    def pytest_assertrepr_compare(op, left, right):
        if isinstance(left, Foo) and isinstance(right, Foo) and op == "==":
-        return ['Comparing Foo instances:',
-                  '   vals: %s != %s' % (left.val, right.val)]
+           return ['Comparing Foo instances:',
+                   '   vals: %s != %s' % (left.val, right.val)]
 
 now, given this test module::