diff --git a/content/tokio/tutorial/framing.md b/content/tokio/tutorial/framing.md
index aff900de..7cd7efea 100644
--- a/content/tokio/tutorial/framing.md
+++ b/content/tokio/tutorial/framing.md
@@ -13,7 +13,7 @@ use bytes::Bytes;
 enum Frame {
     Simple(String),
     Error(String),
-    Integer(u64),
+    Integer(i64),
     Bulk(Bytes),
     Null,
     Array(Vec<Frame>),