diff --git a/Modules/arraymodule.c b/Modules/arraymodule.c
index fb9ebbe..f532678 100644
--- a/Modules/arraymodule.c
+++ b/Modules/arraymodule.c
@@ -5,6 +5,7 @@
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
+#include "pycore_moduleobject.h"  // _PyModule_GetState()
 #include "structmember.h"         // PyMemberDef
 #include <stddef.h>               // offsetof()
 
@@ -63,7 +64,7 @@ typedef struct {
 static array_state *
 get_array_state(PyObject *module)
 {
-    return (array_state *)PyModule_GetState(module);
+    return (array_state *)_PyModule_GetState(module);
 }
 
 #define find_array_state_by_type(tp) \