diff --git a/compile.c b/compile.c
index 826260d182..afa2d1e1ea 100644
--- a/compile.c
+++ b/compile.c
@@ -49,7 +49,6 @@
 #include "insns_info.inc"
 
 #define FIXNUM_INC(n, i) ((n)+(INT2FIX(i)&~FIXNUM_FLAG))
-#define FIXNUM_OR(n, i) ((n)|INT2FIX(i))
 
 typedef struct iseq_link_element {
     enum {