diff --git a/docs/Development.md b/docs/Development.md
index 3c400a04..1019fc20 100644
--- a/docs/Development.md
+++ b/docs/Development.md
@@ -14,6 +14,7 @@ Please use cyclone-bootstrap if you are installing Cyclone on a machine for the
 
 The following prerequisites are required:
 
+- libck (see install instructions)
 - make
 - gcc