diff --git a/pkgs/development/python-modules/spglib/default.nix b/pkgs/development/python-modules/spglib/default.nix
index 7428e6e9e915..73af5d7b00c6 100644
--- a/pkgs/development/python-modules/spglib/default.nix
+++ b/pkgs/development/python-modules/spglib/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, numpy, nose, pyyaml }:
+{ stdenv, buildPythonPackage, fetchPypi, fetchpatch, numpy, nose, pyyaml }:
 
 buildPythonPackage rec {
   pname = "spglib";
@@ -9,6 +9,15 @@ buildPythonPackage rec {
     sha256 = "15b02b74c0f06179bc3650c43a710a5200abbba387c6eda3105bfd9236041443";
   };
 
+  patches = [
+    (fetchpatch {
+      name = "fix-assertions.patch";
+      url = https://github.com/atztogo/spglib/commit/d57070831585a6f02dec0a31d25b375ba347798c.patch;
+      stripLen = 1;
+      sha256 = "0crmkc498rbrawiy9zbl39qis2nmsbfr4s6kk6k3zhdy8z2ppxw7";
+    })
+  ];
+
   propagatedBuildInputs = [ numpy ];
 
   checkInputs = [ nose pyyaml ];