diff --git a/PC/python3.def b/PC/python3.def
index 9e035379e80..37e454bd5d6 100644
--- a/PC/python3.def
+++ b/PC/python3.def
@@ -519,6 +519,7 @@ EXPORTS
   PyType_GenericAlloc=python34.PyType_GenericAlloc
   PyType_GenericNew=python34.PyType_GenericNew
   PyType_GetFlags=python34.PyType_GetFlags
+  PyType_GetSlot=python34.PyType_GetSlot
   PyType_IsSubtype=python34.PyType_IsSubtype
   PyType_Modified=python34.PyType_Modified
   PyType_Ready=python34.PyType_Ready
diff --git a/PC/python34stub.def b/PC/python34stub.def
index 4628cdc3b15..3074cf3f420 100644
--- a/PC/python34stub.def
+++ b/PC/python34stub.def
@@ -518,6 +518,7 @@ PyType_FromSpecWithBases
 PyType_GenericAlloc
 PyType_GenericNew
 PyType_GetFlags
+PyType_GetSlot
 PyType_IsSubtype
 PyType_Modified
 PyType_Ready