diff --git a/docs/index.md b/docs/index.md
index 46f5b4b..12abc6c 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -58,6 +58,33 @@ build-backend = "setuptools.build_meta"
 
     PyAwaitable needs to be installed as both a runtime dependency and build time dependency.
 
+## Vendored Copies
+
+PyAwaitable ships a vendorable version of each release, containing both a `pyawaitable.c` and `pyawaitable.h` file. For many user, it's much easier to vendor PyAwaitable than use it off PyPI.
+
+Initialization is slightly different on a vendored version - instead of using `pyawaitable_init`, you are to use `pyawaitable_vendor_init`, which takes a module object. For example:
+
+```c
+#include "pyawaitable.h"
+/* ... */
+
+PyMODINIT_FUNC
+PyInit_foo(void)
+{
+    PyObject *m = PyModule_Create(/* ... */);
+    if (!m)
+        return NULL;
+
+    if (pyawaitable_init_vendor(m) < 0)
+    {
+        Py_DECREF(m);
+        return NULL;
+    }
+
+    return m;
+}
+```
+
 ## Acknowledgements
 
 Special thanks to:
diff --git a/include/vendor.h b/include/vendor.h
index f494897..a728e0f 100644
--- a/include/vendor.h
+++ b/include/vendor.h
@@ -10,18 +10,18 @@
  * (If you're seeing this message from a vendored copy, you're fine)
  */
 
-#define PYAWAITABLE_ADD_TYPE(m, tp)                                \
-        do                                                         \
-        {                                                          \
-            Py_INCREF(&tp);                                        \
-            if (PyType_Ready(&tp) < 0) {                           \
-                Py_DECREF(&tp);                                    \
-                return -1;                                         \
-            }                                                      \
-            if (PyModule_AddObject(m, #tp, (PyObject *)&tp) < 0) { \
-                Py_DECREF(&tp);                                    \
-                return -1;                                         \
-            }                                                      \
+#define PYAWAITABLE_ADD_TYPE(m, tp)                                 \
+        do                                                          \
+        {                                                           \
+            Py_INCREF(&tp);                                         \
+            if (PyType_Ready(&tp) < 0) {                            \
+                Py_DECREF(&tp);                                     \
+                return -1;                                          \
+            }                                                       \
+            if (PyModule_AddObject(m, #tp, (PyObject *) &tp) < 0) { \
+                Py_DECREF(&tp);                                     \
+                return -1;                                          \
+            }                                                       \
         } while (0)
 
 #define PYAWAITABLE_MAJOR_VERSION 1
@@ -42,6 +42,7 @@
 #define PyAwaitable_ABI pyawaitable_abi
 #define PyAwaitable_Type PyAwaitableType
 #define PyAwaitable_AwaitFunction pyawaitable_await_function
+#define PyAwaitable_VendorInit pyawaitable_vendor_init
 #endif
 
 static int