diff --git a/tgs.go b/tgs.go
index f3f2529..6002359 100644
--- a/tgs.go
+++ b/tgs.go
@@ -13,6 +13,7 @@ type TGSTransformOptions struct {
 	Qualtity     int
 	ResizeWidth  int
 	ResizeHeight int
+	CacheKey     string
 }
 
 type TGSConverter interface {
diff --git a/tgs/service.go b/tgs/service.go
index d025ba1..d89e788 100644
--- a/tgs/service.go
+++ b/tgs/service.go
@@ -38,7 +38,7 @@ func (t tgsConverterImpl) Transform(ctx context.Context, in io.Reader, out io.Wr
 		return err
 	}
 
-	anim := rlottie.LottieAnimationFromData(buf.String(), "", "")
+	anim := rlottie.LottieAnimationFromData(buf.String(), opts.CacheKey, "")
 	defer rlottie.LottieAnimationDestroy(anim)
 
 	width, height := rlottie.LottieAnimationGetSize(anim)