diff --git a/plugins/XPSSpectrum.java b/plugins/XPSSpectrum.java
index 5da0308c..f669044c 100644
--- a/plugins/XPSSpectrum.java
+++ b/plugins/XPSSpectrum.java
@@ -492,7 +492,7 @@ public class XPSSpectrum extends Panel {
                         
             RangeSelection initialRange = new RangeSelection(valueLow.getValue(),valueHigh.getValue());
             int iterations = (int)valueIterations.getValue();
-            initialRange.setVars(new Object[]{valueSize.getValue(),valueTime.getValue(),iterations});
+            initialRange.setVars(new Object[]{valueTime.getValue(), valueSize.getValue(),iterations});
             scanRanges = new RangeSelection[]{initialRange};
 
             start();