diff --git a/configs/sam4s-xplained-pro/README.txt b/configs/sam4s-xplained-pro/README.txt
index 24d7f002884..1f367c806b3 100644
--- a/configs/sam4s-xplained-pro/README.txt
+++ b/configs/sam4s-xplained-pro/README.txt
@@ -3,7 +3,7 @@ README
 
   This README discusses issues unique to NuttX configurations for the
   Atmel SAM4S Xplained development board.  This board features the
-  ATSAM4S16C MCU with 1MB FLASH and 128KB.
+  ATSAM4S32C MCU with 1MB FLASH and 128KB.
 
   The SAM4S Xplained features: