diff --git a/windows/syscall_windows.go b/windows/syscall_windows.go
index 3607f39f..ce78c589 100644
--- a/windows/syscall_windows.go
+++ b/windows/syscall_windows.go
@@ -349,12 +349,14 @@ func NewCallbackCDecl(fn interface{}) uintptr {
 //sys	SetProcessPriorityBoost(process Handle, disable bool) (err error) = kernel32.SetProcessPriorityBoost
 //sys	GetProcessWorkingSetSizeEx(hProcess Handle, lpMinimumWorkingSetSize *uintptr, lpMaximumWorkingSetSize *uintptr, flags *uint32)
 //sys	SetProcessWorkingSetSizeEx(hProcess Handle, dwMinimumWorkingSetSize uintptr, dwMaximumWorkingSetSize uintptr, flags uint32) (err error)
+//sys	ClearCommBreak(handle Handle) (err error)
 //sys	ClearCommError(handle Handle, lpErrors *uint32, lpStat *ComStat) (err error)
 //sys	EscapeCommFunction(handle Handle, dwFunc uint32) (err error)
 //sys	GetCommState(handle Handle, lpDCB *DCB) (err error)
 //sys	GetCommModemStatus(handle Handle, lpModemStat *uint32) (err error)
 //sys	GetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error)
 //sys	PurgeComm(handle Handle, dwFlags uint32) (err error)
+//sys	SetCommBreak(handle Handle) (err error)
 //sys	SetCommMask(handle Handle, dwEvtMask uint32) (err error)
 //sys	SetCommState(handle Handle, lpDCB *DCB) (err error)
 //sys	SetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error)
diff --git a/windows/zsyscall_windows.go b/windows/zsyscall_windows.go
index ddbe678d..5c6035dd 100644
--- a/windows/zsyscall_windows.go
+++ b/windows/zsyscall_windows.go
@@ -188,6 +188,7 @@ var (
 	procAssignProcessToJobObject                             = modkernel32.NewProc("AssignProcessToJobObject")
 	procCancelIo                                             = modkernel32.NewProc("CancelIo")
 	procCancelIoEx                                           = modkernel32.NewProc("CancelIoEx")
+	procClearCommBreak                                       = modkernel32.NewProc("ClearCommBreak")
 	procClearCommError                                       = modkernel32.NewProc("ClearCommError")
 	procCloseHandle                                          = modkernel32.NewProc("CloseHandle")
 	procClosePseudoConsole                                   = modkernel32.NewProc("ClosePseudoConsole")
@@ -341,6 +342,7 @@ var (
 	procResetEvent                                           = modkernel32.NewProc("ResetEvent")
 	procResizePseudoConsole                                  = modkernel32.NewProc("ResizePseudoConsole")
 	procResumeThread                                         = modkernel32.NewProc("ResumeThread")
+	procSetCommBreak                                         = modkernel32.NewProc("SetCommBreak")
 	procSetCommMask                                          = modkernel32.NewProc("SetCommMask")
 	procSetCommState                                         = modkernel32.NewProc("SetCommState")
 	procSetCommTimeouts                                      = modkernel32.NewProc("SetCommTimeouts")
@@ -1651,6 +1653,14 @@ func CancelIoEx(s Handle, o *Overlapped) (err error) {
 	return
 }
 
+func ClearCommBreak(handle Handle) (err error) {
+	r1, _, e1 := syscall.Syscall(procClearCommBreak.Addr(), 1, uintptr(handle), 0, 0)
+	if r1 == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
 func ClearCommError(handle Handle, lpErrors *uint32, lpStat *ComStat) (err error) {
 	r1, _, e1 := syscall.Syscall(procClearCommError.Addr(), 3, uintptr(handle), uintptr(unsafe.Pointer(lpErrors)), uintptr(unsafe.Pointer(lpStat)))
 	if r1 == 0 {
@@ -2982,6 +2992,14 @@ func ResumeThread(thread Handle) (ret uint32, err error) {
 	return
 }
 
+func SetCommBreak(handle Handle) (err error) {
+	r1, _, e1 := syscall.Syscall(procSetCommBreak.Addr(), 1, uintptr(handle), 0, 0)
+	if r1 == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
 func SetCommMask(handle Handle, dwEvtMask uint32) (err error) {
 	r1, _, e1 := syscall.Syscall(procSetCommMask.Addr(), 2, uintptr(handle), uintptr(dwEvtMask), 0)
 	if r1 == 0 {