diff --git a/src/SUMMARY.md b/src/SUMMARY.md
index 60a9a9df7..53398bb51 100644
--- a/src/SUMMARY.md
+++ b/src/SUMMARY.md
@@ -842,7 +842,6 @@
   - [FISSURE - The RF Framework](todo/radio-hacking/fissure-the-rf-framework.md)
   - [Low-Power Wide Area Network](todo/radio-hacking/low-power-wide-area-network.md)
   - [Pentesting BLE - Bluetooth Low Energy](todo/radio-hacking/pentesting-ble-bluetooth-low-energy.md)
-- [Industrial Control Systems Hacking](todo/industrial-control-systems-hacking/README.md)
 - [Test LLMs](todo/test-llms.md)
 - [LLM Training](todo/llm-training-data-preparation/README.md)
   - [0. Basic LLM Concepts](todo/llm-training-data-preparation/0.-basic-llm-concepts.md)