diff --git a/public/app/plugins/panel/histogram/Histogram.tsx b/public/app/plugins/panel/histogram/Histogram.tsx
index c146e5ffd7e..7b48570ebb8 100644
--- a/public/app/plugins/panel/histogram/Histogram.tsx
+++ b/public/app/plugins/panel/histogram/Histogram.tsx
@@ -279,7 +279,7 @@ const preparePlotData = (builder: UPlotConfigBuilder, xMinOnlyFrame: DataFrame)
 };
 
 interface State {
-  // includes fields hidden from viz
+  // includes fields hidden from viz, but excludes xMin/xMax
   alignedFrameLegend: DataFrame;
   // excludes fields hidden from viz
   alignedFrame: DataFrame;