diff --git a/src/SUMMARY.md b/src/SUMMARY.md
index 1eb7961..2cd1912 100644
--- a/src/SUMMARY.md
+++ b/src/SUMMARY.md
@@ -36,9 +36,9 @@
     - [Strings]()
     - [`HashMap<K, V>`]()
 
-- [Error Handling](ch07-01-error-handling.md)
-    - [Unrecoverable errors with panic!](ch07-02-unrecoverable-errors-with-panic.md)
-    - [Recoverable errors with `Result<T, E>`](ch07-03-recoverable-errors-with-result.md)
+- [Error Handling](ch09-00-error-handling.md)
+    - [Unrecoverable errors with panic!](ch09-01-unrecoverable-errors-with-panic.md)
+    - [Recoverable errors with `Result<T, E>`](ch09-02-recoverable-errors-with-result.md)
 
 - [Lifetimes]()
 
diff --git a/src/ch07-01-error-handling.md b/src/ch09-00-error-handling.md
similarity index 100%
rename from src/ch07-01-error-handling.md
rename to src/ch09-00-error-handling.md
diff --git a/src/ch07-02-unrecoverable-errors-with-panic.md b/src/ch09-01-unrecoverable-errors-with-panic.md
similarity index 100%
rename from src/ch07-02-unrecoverable-errors-with-panic.md
rename to src/ch09-01-unrecoverable-errors-with-panic.md
diff --git a/src/ch07-03-recoverable-errors-with-result.md b/src/ch09-02-recoverable-errors-with-result.md
similarity index 100%
rename from src/ch07-03-recoverable-errors-with-result.md
rename to src/ch09-02-recoverable-errors-with-result.md