diff --git a/pkgs/development/python-modules/pylink-square/default.nix b/pkgs/development/python-modules/pylink-square/default.nix
index 8dbc0145b610..117628ec4283 100644
--- a/pkgs/development/python-modules/pylink-square/default.nix
+++ b/pkgs/development/python-modules/pylink-square/default.nix
@@ -13,6 +13,7 @@
   # tests
   mock,
   pytestCheckHook,
+  pyocd,
 }:
 
 buildPythonPackage rec {
@@ -53,6 +54,10 @@ buildPythonPackage rec {
     "test_set_log_file_success"
   ];
 
+  passthru.tests = {
+    inherit pyocd;
+  };
+
   meta = {
     description = "Python interface for the SEGGER J-Link";
     homepage = "https://github.com/square/pylink";