diff --git a/README b/README
index 556ab3f4..dc795f6d 100644
--- a/README
+++ b/README
@@ -39,7 +39,7 @@ Requirements
  - libserialport >= 0.1.0 (optional, used by some drivers)
  - librevisa >= 0.0.20130812 (optional, used by some drivers)
  - libusb-1.0 >= 1.0.16 (optional, used by some drivers)
- - libftdi >= 0.16 (optional, used by some drivers)
+ - libftdi >= 0.16 or libftdi1 >= 1.0 (optional, used by some drivers)
  - check >= 0.9.4 (optional, only needed to run unit tests)