diff --git a/content/3.defense-systems/avs.md b/content/3.defense-systems/avs.md
index 64700d42bf68cc710e9d6639ac7419a7e16ace17..8e224bc2ef668725f0cf8ff18e944fe94e1fb4d3 100644
--- a/content/3.defense-systems/avs.md
+++ b/content/3.defense-systems/avs.md
@@ -73,7 +73,7 @@ The system was detected in 366 different species.
 
 Proportion of genome encoding the Avs system for the 14 phyla with more than 50 genomes in the RefSeq database.
 
-## Structures
+## Structure
 
 
 ::article-structure