diff --git a/content/3.defense-systems/rst_rt-nitrilase-tm.md b/content/3.defense-systems/rst_rt-nitrilase-tm.md
index ed9241d46557a261a57c00020632a38383e9c108..f3fc9bff36618b496462383118d463760e5fa95c 100644
--- a/content/3.defense-systems/rst_rt-nitrilase-tm.md
+++ b/content/3.defense-systems/rst_rt-nitrilase-tm.md
@@ -24,7 +24,7 @@ RT-nitrilase-Tm (also named UG5-large) is a two genes defense system. It was dis
 
 The first protein is a reverse transcriptase (RT) fussed with C-N hydrolase domain (nitrilase) ; the second protein is transmembrane protein :ref{doi=10.1093/nar/gkac467}.
 
-The presence of a RT protein allows to draw a parallel between this system and the [DRT defense system](/defense-systems/DRT).
+The presence of a RT protein allows to draw a parallel between this system and the [DRT defense system](/defense-systems/drt).
 
 ## Molecular mechanism
 As far as we are aware, the molecular mechanism is unknown.