diff --git a/siplib/descriptors.c b/siplib/descriptors.c
index d794f83..29277c5 100644
--- a/siplib/descriptors.c
+++ b/siplib/descriptors.c
@@ -74,7 +74,7 @@ PyTypeObject sipMethodDescr_Type = {
     0,                      /* tp_traverse */
     0,                      /* tp_clear */
     0,                      /* tp_richcompare */
-    0,                      /* tp_weatdelistoffset */
+    0,                      /* tp_weaklistoffset */
     0,                      /* tp_iter */
     0,                      /* tp_iternext */
     0,                      /* tp_methods */
@@ -191,7 +191,7 @@ PyTypeObject sipVariableDescr_Type = {
     0,                      /* tp_traverse */
     0,                      /* tp_clear */
     0,                      /* tp_richcompare */
-    0,                      /* tp_weatdelistoffset */
+    0,                      /* tp_weaklistoffset */
     0,                      /* tp_iter */
     0,                      /* tp_iternext */
     0,                      /* tp_methods */
diff --git a/siplib/siplib.c b/siplib/siplib.c
index 8fd2e82..d43f121 100644
--- a/siplib/siplib.c
+++ b/siplib/siplib.c
@@ -74,7 +74,7 @@ static PyTypeObject sipWrapperType_Type = {
     0,                      /* tp_traverse */
     0,                      /* tp_clear */
     0,                      /* tp_richcompare */
-    0,                      /* tp_weatdelistoffset */
+    0,                      /* tp_weaklistoffset */
     0,                      /* tp_iter */
     0,                      /* tp_iternext */
     0,                      /* tp_methods */
@@ -130,7 +130,7 @@ static sipWrapperType sipWrapper_Type = {
             (traverseproc)sipWrapper_traverse,  /* tp_traverse */
             (inquiry)sipWrapper_clear,  /* tp_clear */
             0,              /* tp_richcompare */
-            0,              /* tp_weatdelistoffset */
+            0,              /* tp_weaklistoffset */
             0,              /* tp_iter */
             0,              /* tp_iternext */
             0,              /* tp_methods */
@@ -476,7 +476,7 @@ static PyTypeObject sipEnumType_Type = {
     0,                      /* tp_traverse */
     0,                      /* tp_clear */
     0,                      /* tp_richcompare */
-    0,                      /* tp_weatdelistoffset */
+    0,                      /* tp_weaklistoffset */
     0,                      /* tp_iter */
     0,                      /* tp_iternext */
     0,                      /* tp_methods */
@@ -9154,7 +9154,7 @@ sipWrapperType sipSimpleWrapper_Type = {
             (traverseproc)sipSimpleWrapper_traverse,    /* tp_traverse */
             (inquiry)sipSimpleWrapper_clear,    /* tp_clear */
             0,              /* tp_richcompare */
-            0,              /* tp_weatdelistoffset */
+            0,              /* tp_weaklistoffset */
             0,              /* tp_iter */
             0,              /* tp_iternext */
             0,              /* tp_methods */
diff --git a/siplib/voidptr.c b/siplib/voidptr.c
index 6033f16..fc26046 100644
--- a/siplib/voidptr.c
+++ b/siplib/voidptr.c
@@ -418,7 +418,7 @@ PyTypeObject sipVoidPtr_Type = {
     0,                      /* tp_traverse */
     0,                      /* tp_clear */
     0,                      /* tp_richcompare */
-    0,                      /* tp_weatdelistoffset */
+    0,                      /* tp_weaklistoffset */
     0,                      /* tp_iter */
     0,                      /* tp_iternext */
     sipVoidPtr_Methods,     /* tp_methods */