diff --git a/API-Reference.md b/API-Reference.md
index ab4cd2d..6272476 100644
--- a/API-Reference.md
+++ b/API-Reference.md
@@ -32,6 +32,7 @@ The following functions are provided by the library:
 |s.iskeypressed(key)|Is key newly pressed|
 |s.rand(min=0, max=1)|Random float|
 |s.randi(min=0, max=1)|Random integer|
+|s.rseed|Set RNG seed|
 
 ## Sounds and music