1 files changed, 1 insertions, 0 deletions

diff --git a/README.md b/README.md
index 3bdcbcc..0dd8f9b 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,7 @@ Dependencies
 
  - (make) GNU Make (or compatible)
  - libusb 1.0 (or compatible)
+ - POSIX.1-2001 or later (getopt, nanosleep, glob)
 
 Compilation and Installation
 ----------------------------