diff --git a/org.jdrupes.vmoperator.vmconlet/src/org/jdrupes/vmoperator/vmconlet/TimeSeries.java b/org.jdrupes.vmoperator.vmconlet/src/org/jdrupes/vmoperator/vmconlet/TimeSeries.java
index cc17295..c7f634b 100644
--- a/org.jdrupes.vmoperator.vmconlet/src/org/jdrupes/vmoperator/vmconlet/TimeSeries.java
+++ b/org.jdrupes.vmoperator.vmconlet/src/org/jdrupes/vmoperator/vmconlet/TimeSeries.java
@@ -36,7 +36,7 @@ public class TimeSeries {
     /**
      * Instantiates a new time series.
      *
-     * @param series the number of series
+     * @param period the period
      */
     public TimeSeries(Duration period) {
         this.period = period;