diff --git a/pkgs/development/python-modules/latexcodec/default.nix b/pkgs/development/python-modules/latexcodec/default.nix
index 25a266b3dc2..3514d5da9a2 100644
--- a/pkgs/development/python-modules/latexcodec/default.nix
+++ b/pkgs/development/python-modules/latexcodec/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, six }:
+{ stdenv, buildPythonPackage, fetchPypi, six, pytest }:
 
 buildPythonPackage rec {
   pname = "latexcodec";
@@ -11,6 +11,12 @@ buildPythonPackage rec {
 
   propagatedBuildInputs = [ six ];
 
+  checkInputs = [ pytest ];
+
+  checkPhase = ''
+    pytest
+  '';
+
   meta = {
     homepage = "https://github.com/mcmtroffaes/latexcodec";
     description = "Lexer and codec to work with LaTeX code in Python";