diff --git a/src/ch17-04-streams.md b/src/ch17-04-streams.md
index 7f9cd2c..0f980c0 100644
--- a/src/ch17-04-streams.md
+++ b/src/ch17-04-streams.md
@@ -1,4 +1,4 @@
-## 流（Streams）：顺序的 Futrues
+## 流（Streams）：顺序的 Futures
 
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