diff --git a/.gitlab/ci/build.yml b/.gitlab/ci/build.yml
index ad4ed2f27f3..b16c440f940 100644
--- a/.gitlab/ci/build.yml
+++ b/.gitlab/ci/build.yml
@@ -281,6 +281,7 @@ pytest_buildv2_system:
       test_reproducible_build.py
       test_sdkconfig.py
       test_versions.py
+      test_common.py
 
 pytest_build_system_macos:
   extends:
diff --git a/tools/test_build_system/test_common.py b/tools/test_build_system/test_common.py
index d79ea420998..e7f4cc69e53 100644
--- a/tools/test_build_system/test_common.py
+++ b/tools/test_build_system/test_common.py
@@ -71,7 +71,8 @@ def test_idf_build_with_env_var_sdkconfig_defaults(test_app_copy: Path, default_
         fw.write('CONFIG_BT_ENABLED=y')
 
     default_idf_env['SDKCONFIG_DEFAULTS'] = 'sdkconfig.test'
-    run_idf_py('build', env=default_idf_env)
+    # idf.py reconfigure would generate the sdkconfig file
+    run_idf_py('reconfigure', env=default_idf_env)
 
     with open(test_app_copy / 'sdkconfig') as fr:
         assert 'CONFIG_BT_ENABLED=y' in fr.read()