--- a/artifacts/src/main/java/org/dive4elements/river/artifacts/access/SedimentLoadAccess.java	Mon Sep 08 19:01:26 2014 +0200
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/access/SedimentLoadAccess.java	Mon Sep 08 19:47:01 2014 +0200
@@ -27,7 +27,7 @@
 
     private int [] period;
 
-    private int sqTiId;
+    private Integer sqTiId;
 
     public SedimentLoadAccess(D4EArtifact artifact) {
         super(artifact);
@@ -115,10 +115,9 @@
     }
 
     /** Returns the selected time interval id */
-    public int getSQTiId () {
-        if (sqTiId == 0) {
-            Integer obj = getInteger("sq_ti_id");
-            sqTiId = obj == null ? 0 : obj;
+    public Integer getSQTiId () {
+        if (sqTiId == null) {
+            sqTiId = getInteger("sq_ti_id");
         }
         return sqTiId;
     }