diff --git a/nbproject/project.properties b/nbproject/project.properties
index 5a47cde..e15010c 100644
--- a/nbproject/project.properties
+++ b/nbproject/project.properties
@@ -1,4 +1,4 @@
-#Mon, 09 Oct 2017 22:37:48 +0200
+#Tue, 10 Oct 2017 11:01:16 +0200
 annotation.processing.enabled=true
 annotation.processing.enabled.in.editor=false
 annotation.processing.processors.list=
diff --git a/src/sesim/IDGenerator.java b/src/sesim/IDGenerator.java
index 63cad4b..4c6fa30 100644
--- a/src/sesim/IDGenerator.java
+++ b/src/sesim/IDGenerator.java
@@ -33,6 +33,7 @@ package sesim;
 public class IDGenerator {
 
     private long next_id;
+    private long start_id;
 
     /**
      * Initialize the ID generator
@@ -40,7 +41,8 @@ public class IDGenerator {
      * @param start ID value to start with
      */
     public IDGenerator(long start) {
-        next_id = start;
+        start_id=start;
+        reset();
     }
 
     /**
@@ -49,6 +51,13 @@ public class IDGenerator {
     public IDGenerator() {
         this(0);
     }
+    
+    /**
+     * Reset the ID generator
+     */
+    public final void reset(){
+        next_id = start_id;
+    }
 
     /**
      * Get the next ID