diff --git a/organs/tectum/tectum.md b/organs/tectum/tectum.md
index 986fbe7..bbb3dea 100644
--- a/organs/tectum/tectum.md
+++ b/organs/tectum/tectum.md
@@ -37,8 +37,8 @@ TECTUM
 
     $: BEHAVIOUR [ behaviour: EXCITATION, collection: COLLECTION [ 
       pre: @WTA-001.$OUT-EXCI-001.collection.pre, 
-      post: WTA-003.$IN-EXCI-002.collection.post, 
-      astro: WTA-003.$IN-EXCI-002.collection.astro ] ]
+      post: @WTA-003.$IN-EXCI-002.collection.post, 
+      astro: @WTA-003.$IN-EXCI-002.collection.astro ] ]
 ```
 
 ### EXCITATION