diff --git a/Modules/_threadmodule.c b/Modules/_threadmodule.c
index 32110090feb21e..c1702c7f672fad 100644
--- a/Modules/_threadmodule.c
+++ b/Modules/_threadmodule.c
@@ -50,7 +50,7 @@ get_thread_state(PyObject *module)
 
 
 #ifdef MS_WINDOWS
-typedef HRESULT (WINAPI *PF_GET_THREAD_DESCRIPTION)(HANDLE, PCWSTR*);
+typedef HRESULT (WINAPI *PF_GET_THREAD_DESCRIPTION)(HANDLE, PWSTR*);
 typedef HRESULT (WINAPI *PF_SET_THREAD_DESCRIPTION)(HANDLE, PCWSTR);
 static PF_GET_THREAD_DESCRIPTION pGetThreadDescription = NULL;
 static PF_SET_THREAD_DESCRIPTION pSetThreadDescription = NULL;
diff --git a/Python/traceback.c b/Python/traceback.c
index c8c13d16d4c79c..48be6f5add352d 100644
--- a/Python/traceback.c
+++ b/Python/traceback.c
@@ -72,7 +72,7 @@ class traceback "PyTracebackObject *" "&PyTraceback_Type"
 
 
 #ifdef MS_WINDOWS
-typedef HRESULT (WINAPI *PF_GET_THREAD_DESCRIPTION)(HANDLE, PCWSTR*);
+typedef HRESULT (WINAPI *PF_GET_THREAD_DESCRIPTION)(HANDLE, PWSTR*);
 static PF_GET_THREAD_DESCRIPTION pGetThreadDescription = NULL;
 #endif