diff --git a/tests/coverage.h b/tests/coverage.h
index 0b443e3e..4dd2cee2 100644
--- a/tests/coverage.h
+++ b/tests/coverage.h
@@ -71,6 +71,8 @@
 #undef atomic_init
 #undef atomic_load
 #undef atomic_store
+#undef M_CONST_CAST
+#undef M_ASSIGN_CAST
 #else
 /* For normal builds, empty macros which does nothing */
 #define START_COVERAGE