diff --git a/index.html b/index.html
index f37ca3a..f741d3c 100644
--- a/index.html
+++ b/index.html
@@ -549,7 +549,7 @@ function drawSpectrum() {
     } else if (peakHoldCounters[i] < peakHoldGrace) {
       peakHoldCounters[i]++;
     } else {
-      peakData[i] = 0;
+      peakData[i] *= peakDecay;
     }
   }
   ctx.fillStyle = '#e27878';