diff --git a/Analysis/src/EmbeddedBuiltinDefinitions.cpp b/Analysis/src/EmbeddedBuiltinDefinitions.cpp
index 364244a..dfc6ff0 100644
--- a/Analysis/src/EmbeddedBuiltinDefinitions.cpp
+++ b/Analysis/src/EmbeddedBuiltinDefinitions.cpp
@@ -92,7 +92,7 @@ type DateTypeResult = {
 
 declare os: {
     time: (time: DateTypeArg?) -> number,
-    date: (formatString: string?, time: number?) -> DateTypeResult | string,
+    date: ((formatString: "*t" | "!*t", time: number?) -> DateTypeResult) & ((formatString: string?, time: number?) -> string),
     difftime: (t2: DateTypeResult | number, t1: DateTypeResult | number) -> number,
     clock: () -> number,
 }