diff --git a/backends/midi/seq.cpp b/backends/midi/seq.cpp
index 0e6982e3ae2..f528a51a486 100644
--- a/backends/midi/seq.cpp
+++ b/backends/midi/seq.cpp
@@ -38,6 +38,7 @@
 ////////////////////////////////////////
 
 #define SEQ_MIDIPUTC 5
+#define EV_SYSEX     0x94
 
 class MidiDriver_SEQ : public MidiDriver_MPU401 {
 public: