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-rw-r--r--src/music/win32_m.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/music/win32_m.cpp b/src/music/win32_m.cpp
index 777f1185e..da26dfb6d 100644
--- a/src/music/win32_m.cpp
+++ b/src/music/win32_m.cpp
@@ -83,7 +83,7 @@ static void TransmitSysex(const byte *&msg_start, size_t &remaining)
/* prepare header */
MIDIHDR *hdr = CallocT<MIDIHDR>(1);
- hdr->lpData = (LPSTR)msg_start;
+ hdr->lpData = reinterpret_cast<LPSTR>(const_cast<byte *>(msg_start));
hdr->dwBufferLength = msg_end - msg_start;
if (midiOutPrepareHeader(_midi.midi_out, hdr, sizeof(*hdr)) == MMSYSERR_NOERROR) {
/* transmit - just point directly into the data buffer */