diff --git a/elements/neuron/presynapse.md b/elements/neuron/presynapse.md
index bc3ad7a..a5dbf09 100644
--- a/elements/neuron/presynapse.md
+++ b/elements/neuron/presynapse.md
@@ -381,6 +381,8 @@ CheckVgccPreTun
       out_context: *TryTunDownPreVcgg
 ```
 
+#### *TryTunUpPreVcgg
+
 ##### PossibleUpPreVgccTun
 
 ```Gen
@@ -394,6 +396,8 @@ PossibleUpPreVgccTun
       trace: 
 ```
 
+#### *TryTunDownPreVcgg
+
 ##### PossibleDownPreVgccTun: ( active: 10x ) accumulator
 
 ```Gen