diff --git a/content/2.general-concepts/0.index.md b/content/2.general-concepts/0.index.md
index 83567adb8bd9ffbb8a69fa2589dc2a259e582fd5..cf43130e79633722cdc341770045d62b7a29e45c 100644
--- a/content/2.general-concepts/0.index.md
+++ b/content/2.general-concepts/0.index.md
@@ -9,11 +9,11 @@ In the following pages are presented different general concepts that are useful
 
 You'll find information on :
 
-1. [Abortive infection](/general-concepts/abortive-infection)
-2. [Defense Islands  ](/general-concepts/defense-islands)
-3. [Triggers of defense systems](/general-concepts/defense-systems_trigger)
-4. [Effectors of defense systems](/general-concepts/defense-systems_effector)
-5. [How defense systems were and are discovered](/general-concepts/defense-systems-discovery)
-6. [Defensive domains](/general-concepts/defense-domains)
-7. [MGE and defense systems](/general-concepts/MGE-defense-systems)
-8. [Anti defense systems](/general-concepts/anti-defense-systems)
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+1. [Abortive infection](/general-concepts/abortive-infection/)
+2. [Defense Islands  ](/general-concepts/defense-islands/)
+3. [Triggers of defense systems](/general-concepts/defense-systems_trigger/)
+4. [Effectors of defense systems](/general-concepts/defense-systems_effector/)
+5. [How defense systems were and are discovered](/general-concepts/defense-systems-discovery/)
+6. [Defensive domains](/general-concepts/defense-domains/)
+7. [MGE and defense systems](/general-concepts/MGE-defense-systems/)
+8. [Anti defense systems](/general-concepts/anti-defense-systems/)
\ No newline at end of file