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-rw-r--r--osdep/subprocess-win.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/osdep/subprocess-win.c b/osdep/subprocess-win.c
index c662fb6301..5df09cda78 100644
--- a/osdep/subprocess-win.c
+++ b/osdep/subprocess-win.c
@@ -112,7 +112,8 @@ static int create_overlapped_pipe(HANDLE *read, HANDLE *write)
unsigned long id = atomic_fetch_add(&counter, 1);
unsigned pid = GetCurrentProcessId();
wchar_t buf[36];
- swprintf(buf, sizeof(buf), L"\\\\.\\pipe\\mpv-anon-%08x-%08lx", pid, id);
+ swprintf(buf, MP_ARRAY_SIZE(buf), L"\\\\.\\pipe\\mpv-anon-%08x-%08lx",
+ pid, id);
// The function for creating anonymous pipes (CreatePipe) can't create
// overlapped pipes, so instead, use a named pipe with a unique name