diff --git a/src/common/globals.h b/src/common/globals.h
index cd5bd556f9e..ea4f8c9eb06 100644
--- a/src/common/globals.h
+++ b/src/common/globals.h
@@ -60,7 +60,9 @@ static inline int _stricmp(const char *s1, const char *s2) { return strcasecmp(s
 #error You must compile with -DSURGE_COMPILE_BLOCK_SIZE=32 (or whatnot)
 #endif
 
+#ifndef SURGE_HAS_OSC
 #define SURGE_HAS_OSC 1
+#endif
 
 const int BASE_WINDOW_SIZE_X = 913;
 const int BASE_WINDOW_SIZE_Y = 569;