diff --git a/API-Reference.md b/API-Reference.md
index decac34..ab4cd2d 100644
--- a/API-Reference.md
+++ b/API-Reference.md
@@ -29,6 +29,7 @@ The following functions are provided by the library:
 |Function|Description|
 | --- | --- |
 |s.iskeydown(key)|Keyboard state|
+|s.iskeypressed(key)|Is key newly pressed|
 |s.rand(min=0, max=1)|Random float|
 |s.randi(min=0, max=1)|Random integer|