diff --git a/Modules/ossaudiodev.c b/Modules/ossaudiodev.c
index 58ee71f..150a14e 100644
--- a/Modules/ossaudiodev.c
+++ b/Modules/ossaudiodev.c
@@ -964,7 +964,7 @@
 static PyTypeObject OSSAudioType = {
     PyVarObject_HEAD_INIT(&PyType_Type, 0)
     "ossaudiodev.oss_audio_device", /*tp_name*/
-    sizeof(oss_audio_t),        /*tp_size*/
+    sizeof(oss_audio_t),        /*tp_basicsize*/
     0,                          /*tp_itemsize*/
     /* methods */
     (destructor)oss_dealloc,    /*tp_dealloc*/
@@ -996,7 +996,7 @@
 static PyTypeObject OSSMixerType = {
     PyVarObject_HEAD_INIT(&PyType_Type, 0)
     "ossaudiodev.oss_mixer_device", /*tp_name*/
-    sizeof(oss_mixer_t),            /*tp_size*/
+    sizeof(oss_mixer_t),            /*tp_basicsize*/
     0,                              /*tp_itemsize*/
     /* methods */
     (destructor)oss_mixer_dealloc,  /*tp_dealloc*/