1 files changed, 2 insertions, 0 deletions
diff --git a/error.c b/error.c
index 07a72a9a94..bfa3a950db 100644
--- a/error.c
+++ b/error.c
@@ -348,6 +348,8 @@ VALUE rb_eSystemCallError;
 VALUE rb_mErrno;
 static VALUE rb_eNOERROR;
 
+#undef rb_exc_new2
+
 VALUE
 rb_exc_new(VALUE etype, const char *ptr, long len)
 {