From a4e2fa8e009fc5f90c5812c8cb3224fd924b9282 Mon Sep 17 00:00:00 2001
From: Martin Wagner <martin.wagner.dev@gmail.com>
Date: Mon, 6 Oct 2025 21:22:29 +0200
Subject: [PATCH] Use `coefficient_ring` in serialization

---
 src/Serialization/Rings.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Serialization/Rings.jl b/src/Serialization/Rings.jl
index 0cf3dbe4a3bc..ce67e1110503 100644
--- a/src/Serialization/Rings.jl
+++ b/src/Serialization/Rings.jl
@@ -144,7 +144,7 @@ end
 # elements
 function save_object(s::SerializerState, p::Union{UniversalPolyRingElem, MPolyRingElem})
   # we use this line instead of typeof(coeff(p, 1)) to catch the 0 polynomial
-  coeff_type = elem_type(base_ring(parent(p)))
+  coeff_type = elem_type(coefficient_ring(p))
   save_data_array(s) do
     for i in 1:length(p)
       save_data_array(s) do