diff --git a/TrimSPlib.js b/TrimSPlib.js
index add3998..1e52dd2 100644
--- a/TrimSPlib.js
+++ b/TrimSPlib.js
@@ -678,7 +678,7 @@ function ProjSmartDefaults()
    var sigEnergy = document.getElementById("sigEnergy");
    var sigAngle = document.getElementById("sigAngle");
 
-   if (Proj == "Muon") {
+   if (Proj == "muon") {
       sigEnergy.value = "450";
       sigAngle.value = "15";
    } else {