diff --git a/config.h b/config.h
index 052aa24..b7a40aa 100644
--- a/config.h
+++ b/config.h
@@ -32,10 +32,10 @@
 #define DBUS_DATADIR "/data"
 
 /* Disable assertion checking */
-#undef DBUS_DISABLE_ASSERT
+#define DBUS_DISABLE_ASSERT 1
 
 /* Disable public API sanity checking */
-#undef DBUS_DISABLE_CHECKS
+#define DBUS_DISABLE_CHECKS 1
 
 /* Support a verbose mode */
 #undef DBUS_ENABLE_VERBOSE_MODE