1 files changed, 0 insertions, 1 deletions
diff --git a/iseq.c b/iseq.c
index 19fd8fcb18..19ac0e0d43 100644
--- a/iseq.c
+++ b/iseq.c
@@ -42,7 +42,6 @@
 #include "builtin.h"
 #include "insns.inc"
 #include "insns_info.inc"
-#include <sys/mman.h>
 
 VALUE rb_cISeq;
 static VALUE iseqw_new(const rb_iseq_t *iseq);