diff --git a/_Sidebar.md b/_Sidebar.md
index eb4eb08..c46ba18 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -70,7 +70,8 @@
 2. [Verify sources](https://github.com/jarun/nnn/wiki/Developer-guides#verify-sources)
 3. [make options](https://github.com/jarun/nnn/wiki/Developer-guides#make-options)
 4. [Static compilation](https://github.com/jarun/nnn/wiki/Developer-guides#static-compilation)
-5. [Compile for Pi](https://github.com/jarun/nnn/wiki/Developer-guides#compile-for-pi)
-6. [Compile on Cygwin](https://github.com/jarun/nnn/wiki/Developer-guides#compile-on-cygwin)
-7. [Cross-compile for Android](https://github.com/jarun/nnn/wiki/Developer-guides#cross-compile-for-android)
-8. [Debugging nnn](https://github.com/jarun/nnn/wiki/Developer-guides#debugging-nnn)
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+5. [Optimization tips](https://github.com/jarun/nnn/wiki/Developer-guides#optimization-tips)
+6. [Compile for Pi](https://github.com/jarun/nnn/wiki/Developer-guides#compile-for-pi)
+7. [Compile on Cygwin](https://github.com/jarun/nnn/wiki/Developer-guides#compile-on-cygwin)
+8. [Cross-compile for Android](https://github.com/jarun/nnn/wiki/Developer-guides#cross-compile-for-android)
+9. [Debugging nnn](https://github.com/jarun/nnn/wiki/Developer-guides#debugging-nnn)
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