diff --git a/pkgs/by-name/cg/cgns/package.nix b/pkgs/by-name/cg/cgns/package.nix
index 770a259b49cc..f027bd13fe79 100644
--- a/pkgs/by-name/cg/cgns/package.nix
+++ b/pkgs/by-name/cg/cgns/package.nix
@@ -2,6 +2,7 @@
   lib,
   stdenv,
   fetchFromGitHub,
+  fetchpatch2,
   cmake,
   gfortran,
   tk,
@@ -22,6 +23,14 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-0cZtq8nVAHAubHD6IDofnh8N7xiNHQkbhXR5OpdhPQU=";
   };
 
+  patches = [
+    # Fixes crash for test_particlef on LoongArch64
+    (fetchpatch2 {
+      url = "https://github.com/CGNS/CGNS/commit/0ea14abf6da44f13ca8a01117ad7af8eb405394c.patch?full_index=1";
+      hash = "sha256-dtwTD8YqRm0NCXTDPRHmaPLTU17ZLzOyVii1aoGYge0=";
+    })
+  ];
+
   postPatch = ''
     substituteInPlace src/cgnstools/tkogl/tkogl.c \
       --replace-fail "<tk-private/generic/tkInt.h>" "<tkInt.h>"