diff --git a/matlab/peak_detect.m b/matlab/peak_detect.m
index f6b9ee1..f9278ae 100644
--- a/matlab/peak_detect.m
+++ b/matlab/peak_detect.m
@@ -160,7 +160,7 @@ for k=1:numFrames
 		% Find peak widths
 		left = pos;
 		right = pos;
-		nom = Xd(pos) - 10;
+		nom = 10;
 		left_found = 0;
 		right_found = 0;
 		pbh = 0;