diff --git a/src/AnalysisConfigFiles/RecognizerConfigFiles/Towsey.CisticolaExilis.yml b/src/AnalysisConfigFiles/RecognizerConfigFiles/Towsey.CisticolaExilis.yml
index fe74bfd92..5fb05f960 100644
--- a/src/AnalysisConfigFiles/RecognizerConfigFiles/Towsey.CisticolaExilis.yml
+++ b/src/AnalysisConfigFiles/RecognizerConfigFiles/Towsey.CisticolaExilis.yml
@@ -40,7 +40,7 @@ SyllableStartDifference: 0.15
 SyllableHertzGap: 500
 
 #  B: Filter the events for excess activity in their upper and lower buffer zones
-NeighbourhoodLowerHertzBuffer: 100
+NeighbourhoodLowerHertzBuffer: 0
 NeighbourhoodUpperHertzBuffer: 200
 NeighbourhoodDbThreshold: 4.0