1 files changed, 1 insertions, 0 deletions
diff --git a/INSTALL b/INSTALL
index 0c92f3b..3f4da96 100644
--- a/INSTALL
+++ b/INSTALL
@@ -7,6 +7,7 @@ Build Instructions
   - A POSIX-compliant C development environment
   - GNU make version 3.81 or later
   - skalibs version 2.10.0.0 or later: https://skarnet.org/software/skalibs/
+  - Optional: nsss version 0.1.0.0 or later: https://skarnet.org/software/nsss/
 
  This software will run on any operating system that implements
 POSIX.1-2008, available at: