diff --git a/Doc/c-api/intro.rst b/Doc/c-api/intro.rst
index 6414277..fa2d9f0 100644
--- a/Doc/c-api/intro.rst
+++ b/Doc/c-api/intro.rst
@@ -258,7 +258,7 @@
            if (PyObject_SetItem(target, index, item) < 0) {
                Py_DECREF(index);
                return -1;
-       }
+           }
            Py_DECREF(index);
        }
        return 0;