2 files changed, 3 insertions, 3 deletions
diff --git a/numpy/core/src/multiarray/arrayobject.c b/numpy/core/src/multiarray/arrayobject.c
index 10b750cdb..b559d4aba 100644
--- a/numpy/core/src/multiarray/arrayobject.c
+++ b/numpy/core/src/multiarray/arrayobject.c
@@ -1655,7 +1655,7 @@ array_alloc(PyTypeObject *type, Py_ssize_t NPY_UNUSED(nitems))
 {
     PyObject *obj;
     /* nitems will always be 0 */
-    obj = (PyObject *)PyArray_malloc(NPY_SIZEOF_PYARRAYOBJECT);
+    obj = (PyObject *)PyArray_malloc(type->tp_basicsize);
     PyObject_Init(obj, type);
     return obj;
 }
diff --git a/numpy/core/src/multiarray/item_selection.c b/numpy/core/src/multiarray/item_selection.c
index 0da921b62..31916cf40 100644
--- a/numpy/core/src/multiarray/item_selection.c
+++ b/numpy/core/src/multiarray/item_selection.c
@@ -1225,11 +1225,11 @@ PyArray_LexSort(PyObject *sort_keys, int axis)
                 "need sequence of keys with len > 0 in lexsort");
         return NULL;
     }
-    mps = (PyArrayObject **) PyArray_malloc(n*NPY_SIZEOF_PYARRAYOBJECT);
+    mps = (PyArrayObject **) PyArray_malloc(n * sizeof(PyArrayObject *));
     if (mps == NULL) {
         return PyErr_NoMemory();
     }
-    its = (PyArrayIterObject **) PyArray_malloc(n*sizeof(PyArrayIterObject));
+    its = (PyArrayIterObject **) PyArray_malloc(n * sizeof(PyArrayIterObject *));
     if (its == NULL) {
         PyArray_free(mps);
         return PyErr_NoMemory();