diff --git a/README.md b/README.md
index 0942183..e19ec5f 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ git submodule update --init --recursive
 
 Follow the TinyUSB build instructions [available here](https://github.com/hathach/tinyusb/tree/master/docs), but issue the make command in the base directory of Dapper Mime.
 
-Note that each TinyUSB board name being targeted needs a corresponding subdirectory under the Dapper Mime ./bsp/ subdirectory and a customized version of swdio_bsp.h for the target.
+Note that each TinyUSB board name being targeted needs a corresponding subdirectory under the Dapper Mime ./bsp/ subdirectory and a customized version of DAP_config.h for the target.
 
 ## License