diff --git a/README.md b/README.md
index 80586fe..4617a3b 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # dfu_java
 stm32 java DFU implementation (DfuSe)
 
-This java code can upload a .hex file into stm32f47.
+This java code can upload a .hex or a .dfu file into stm32f47.
 
 On Windows that means using a libusb-compatible driver like the one included in windows_driver folder.