diff --git a/game/game.js b/game/game.js
index 4fbe7ce1e..b1c17fb67 100644
--- a/game/game.js
+++ b/game/game.js
@@ -7271,16 +7271,8 @@
 			}
 		},
 		genAsync:fn=>gnc.of(fn),
-		genAwait:_=>{throw new Error("lib.genAwait is removed!");},
+		genAwait:item=>gnc.is.generator(item)?gnc.of(function*(){for(const content of item){yield content;}})():Promise.resolve(item),
 		gnc:{
-			/**
-			 * @deprecated please use `gnc.of`
-			 */
-			async:fn=>{
-				console.log("Deprecated: please use `gnc.of`.");
-				return gnc.of(fn);
-			},
-			await:_=>{throw new Error("lib.gnc.await is removed.");},
 			of:fn=>gnc.of(fn),
 			is:{
 				coroutine:item=>gnc.is.coroutine(item),