diff --git a/phosphor-regulators/test/meson.build b/phosphor-regulators/test/meson.build
index 6db6b88..c051097 100644
--- a/phosphor-regulators/test/meson.build
+++ b/phosphor-regulators/test/meson.build
@@ -10,6 +10,7 @@
     'rule_tests.cpp',
 
     'actions/action_environment_tests.cpp',
+    'actions/action_error_tests.cpp',
     'actions/action_utils_tests.cpp',
     'actions/and_action_tests.cpp',
     'actions/if_action_tests.cpp',