diff --git a/core/sys/windows/kernel32.odin b/core/sys/windows/kernel32.odin
index 390af3ab8..33422370c 100644
--- a/core/sys/windows/kernel32.odin
+++ b/core/sys/windows/kernel32.odin
@@ -130,6 +130,7 @@ foreign kernel32 {
 	ResumeThread :: proc(thread: HANDLE) -> DWORD ---
 	GetThreadPriority :: proc(thread: HANDLE) -> c_int ---
 	SetThreadPriority :: proc(thread: HANDLE, priority: c_int) -> BOOL ---
+	SetThreadDescription :: proc(hThread: HANDLE, lpThreadDescription: PCWSTR) -> HRESULT ---
 	GetExitCodeThread :: proc(thread: HANDLE, exit_code: ^DWORD) -> BOOL ---
 	TerminateThread :: proc(thread: HANDLE, exit_code: DWORD) -> BOOL ---
 	SuspendThread :: proc(hThread: HANDLE) -> DWORD ---
diff --git a/core/sys/windows/user32.odin b/core/sys/windows/user32.odin
index 0c92adca4..64e39df39 100644
--- a/core/sys/windows/user32.odin
+++ b/core/sys/windows/user32.odin
@@ -53,6 +53,7 @@ foreign user32 {
 	DispatchMessageW :: proc(lpMsg: ^MSG) -> LRESULT ---
 
 	WaitMessage :: proc() -> BOOL ---
+	MsgWaitForMultipleObjects :: proc(nCount: DWORD, pHandles: ^HANDLE, fWaitAll: bool, dwMilliseconds: DWORD, dwWakeMask: DWORD) -> DWORD ---
 
 	PeekMessageA :: proc(lpMsg: ^MSG, hWnd: HWND, wMsgFilterMin: UINT, wMsgFilterMax: UINT, wRemoveMsg: UINT) -> BOOL ---
 	PeekMessageW :: proc(lpMsg: ^MSG, hWnd: HWND, wMsgFilterMin: UINT, wMsgFilterMax: UINT, wRemoveMsg: UINT) -> BOOL ---