diff --git a/src/main/java/it/geosolutions/geoserver/rest/decoder/RESTCoverage.java b/src/main/java/it/geosolutions/geoserver/rest/decoder/RESTCoverage.java
index d0609d4..54e2666 100644
--- a/src/main/java/it/geosolutions/geoserver/rest/decoder/RESTCoverage.java
+++ b/src/main/java/it/geosolutions/geoserver/rest/decoder/RESTCoverage.java
@@ -199,7 +199,7 @@ public class RESTCoverage extends RESTResource {
 	public List<RESTDimensionInfo> getDimensionInfo() {
             List<RESTDimensionInfo> listDim = new ArrayList<RESTDimensionInfo>();
             for (RESTMetadataList.RESTMetadataElement el : getMetadataList()){
-                if(el.getKey().equals("time") || el.getKey().equals("elevation")){
+                if(el.getKey().equals(RESTDimensionInfo.TIME) || el.getKey().equals(RESTDimensionInfo.ELEVATION)){
                     listDim.add(new RESTDimensionInfo(el.getMetadataElem()));
                 }
             }
diff --git a/src/main/java/it/geosolutions/geoserver/rest/decoder/RESTDimensionInfo.java b/src/main/java/it/geosolutions/geoserver/rest/decoder/RESTDimensionInfo.java
index 9ee01f4..b24be1b 100644
--- a/src/main/java/it/geosolutions/geoserver/rest/decoder/RESTDimensionInfo.java
+++ b/src/main/java/it/geosolutions/geoserver/rest/decoder/RESTDimensionInfo.java
@@ -33,6 +33,9 @@ public class RESTDimensionInfo extends RESTMetadataList.RESTMetadataElement{
     private String presentation;
     private String resolution;
     
+    public static final String TIME = "time";
+    public static final String ELEVATION = "elevation";
+    
     /**
      * @param elem
      */