1 files changed, 1 insertions, 0 deletions
diff --git a/rational.c b/rational.c
index afa4bd4cec..626d29565e 100644
--- a/rational.c
+++ b/rational.c
@@ -1583,6 +1583,7 @@ nurat_marshal_dump(VALUE self)
     get_dat1(self);
 
     a = rb_assoc_new(dat->num, dat->den);
+    rb_copy_generic_ivar(a, self);
     return a;
 }