diff --git a/include/pybind11/internal/module.h b/include/pybind11/internal/module.h
index 69047341..3355e2a3 100644
--- a/include/pybind11/internal/module.h
+++ b/include/pybind11/internal/module.h
@@ -52,7 +52,7 @@ using module_ = module;
 
 #define PYBIND11_MODULE(name, variable)                                                            \
     static void _pkbind_register_##name(::pkbind::module& variable);                               \
-    extern "C" bool pybind_module_initialize() {                                                   \
+    extern "C" bool py_module_initialize() {                                                       \
         auto m = ::pkbind::module::create(#name);                                                  \
         _pkbind_register_##name(m);                                                                \
         return true;                                                                               \
diff --git a/include/pybind11/tests/module.cpp b/include/pybind11/tests/module.cpp
index b6af6720..4d8b2fa3 100644
--- a/include/pybind11/tests/module.cpp
+++ b/include/pybind11/tests/module.cpp
@@ -64,7 +64,7 @@ TEST_F(PYBIND11_TEST, raw_module) {
 }
 
 TEST_F(PYBIND11_TEST, module3) {
-    pybind_module_initialize();
+    py_module_initialize();
 
     py::exec("import example3");
     EXPECT_EVAL_EQ("example3.add(1, 2)", 3);