diff --git a/README.md b/README.md
index adc6b79e4d1f2a432e56799213587eeb3676bf2a..919c412af670736420539a135f0283d5715f8715 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ ch32v003fun contains:
 
 ## System Prep
 
-On WSL or Debian based OSes `apt-get install build-essential libnewlib-dev gcc-riscv64-unknown-elf`
+On WSL or Debian based OSes `apt-get install build-essential libnewlib-dev gcc-riscv64-unknown-elf libusb-1.0-0-dev`
 
 ## Running