diff --git a/app.qmd b/app.qmd
index df0424f..cda104f 100644
--- a/app.qmd
+++ b/app.qmd
@@ -53,7 +53,7 @@ chart = {
   const sigControl = controlsContainer.append("div").style("display","flex").style("align-items","center").style("gap","10px");
   sigControl.append("label").text("Sigma:").style("font-size","16px");
   sigControl.append("input")
-    .attr("type","range").attr("min", -1).attr("max", 2).attr("step", 1)
+    .attr("type","range").attr("min", -2).attr("max", 2).attr("step", 1)
     .property("value", Math.log2(selectedSig))
     .on("input", function() { selectedSig = 2 ** (+this.value); sigControl.select("span").text(selectedSig); updateChart(filteredData()); });
   sigControl.append("span").text(selectedSig).style("font-size","16px");