diff --git a/src/memray/reporters/assets/flamegraph_common.js b/src/memray/reporters/assets/flamegraph_common.js
index e75b22c4fd..4cfa1eda08 100644
--- a/src/memray/reporters/assets/flamegraph_common.js
+++ b/src/memray/reporters/assets/flamegraph_common.js
@@ -258,8 +258,8 @@ export function initThreadsDropdown(data, merge_threads) {
 }
 
 export function drawChart(chart_data) {
-  // In order to retain the "invertedness" when updating the graph, true
-  // by default.
+  // In order to retain the "invertedness" when updating the graph.
+  // true by default (there was no previous graph).
   let previouslyInverted = chart ? chart.inverted() : true;
   
   // Clear any existing chart