diff --git a/codes/classical/bits/cyclic/self_dual_48_24_12.yml b/codes/classical/bits/cyclic/self_dual_48_24_12.yml
index a6c9d7367..94d785b95 100644
--- a/codes/classical/bits/cyclic/self_dual_48_24_12.yml
+++ b/codes/classical/bits/cyclic/self_dual_48_24_12.yml
@@ -24,7 +24,7 @@ relations:
     - code_id: combinatorial_design
       detail: 'Fixed-weight codewords of extremal self-dual doubly-even codes whose length divides 24 form a combinatorial 5-design \cite{doi:10.1016/S0021-9800(69)80115-8}.'
   cousins:
-    - code_id: group_algebra
+    - code_id: group
       detail: 'The \([48,24,12]\) self-dual code is a group code for \(G\) being a dihedral group \cite{doi:10.1007/s10623-011-9530-0}\cite[Exam. 16.5.1]{preset:HPRainsSloane}.'