diff --git a/dist/index.d.ts b/dist/index.d.ts
index 235139f..f5e9ef1 100644
--- a/dist/index.d.ts
+++ b/dist/index.d.ts
@@ -2042,7 +2042,7 @@ declare const InterShardMemory: InterShardMemory;
 
 type Terrain = "plain" | "swamp" | "wall";
 
-type ExitKey = "1" | "3" | "5" | "7";
+type ExitKey = TOP | RIGHT | BOTTOM | LEFT;
 
 type AnyCreep = Creep | PowerCreep;
 
diff --git a/src/literals.ts b/src/literals.ts
index c0b36a5..750fd8f 100644
--- a/src/literals.ts
+++ b/src/literals.ts
@@ -7,7 +7,7 @@
 
 type Terrain = "plain" | "swamp" | "wall";
 
-type ExitKey = "1" | "3" | "5" | "7";
+type ExitKey = TOP | RIGHT | BOTTOM | LEFT;
 
 type AnyCreep = Creep | PowerCreep;