diff --git a/README.md b/README.md
index 5f6819a..92fc882 100644
--- a/README.md
+++ b/README.md
@@ -37,8 +37,8 @@
  	- [RADIO HACKING STARTING GUIDE](#RADIO-HACKER-QUICK-START-GUIDE)
 	- Cellular Hacking & GSM & BTS
 	- [BTS](#BTS)
-	- [GSM & SS7 Pentesting](GSM & SS7 Pentesting)
-	- [Zigbee](Zigbee ALL Stuff)
+	- [GSM & SS7 Pentesting](GSM-SS7-Pentesting)
+	- [Zigbee](#Zigbee-ALL-Stuff)
 	- [Bluetooth](#BLE-Intro-and-SW-HW-Tools-to-pentest)
 	
 	-