diff --git a/content/3.defense-systems/gao_ppl.md b/content/3.defense-systems/gao_ppl.md
index 99db8258df8ce1e6da5c7f59a51528da4cb745cc..8cc13a0cf71a137684dd2f24988116160a58c7f4 100644
--- a/content/3.defense-systems/gao_ppl.md
+++ b/content/3.defense-systems/gao_ppl.md
@@ -19,7 +19,7 @@ relevantAbstracts:
 
 ## Description
 
-Gao_Ppl or Ppl system is a single gene system. This system was discovered among other in :ref{doi=10.1126/science.aba0372}. This single gene system is described with 2 different domains: PHP (Polymerase and Histidinol Phosphatase) which is a putative nuclease and an ATPase domain.
+Gao_Ppl or Ppl system is a single gene system. This system was discovered among others in :ref{doi=10.1126/science.aba0372}. This single gene system is described with 2 different domains: PHP (Polymerase and Histidinol Phosphatase) which is a putative nuclease and an ATPase domain.
 
 ## Molecular mechanism