diff --git a/include/dahdi/dahdi_config.h b/include/dahdi/dahdi_config.h
index 6af9953..baf0dab 100644
--- a/include/dahdi/dahdi_config.h
+++ b/include/dahdi/dahdi_config.h
@@ -40,11 +40,10 @@
 /* #define SHORT_FLASH_TIME */
 
 /*
- * Uncomment to disable calibration and/or DC/DC converter tests
+ * Uncomment to disable calibration tests
  * (not generally recommended)
  */
 /* #define NO_CALIBRATION */
-/* #define NO_DCDC */
 
 /*
  * Boost ring voltage (Higher ring voltage, takes more power)