diff --git a/source/java/org/alfresco/rest/api/impl/NodesImpl.java b/source/java/org/alfresco/rest/api/impl/NodesImpl.java
index 7884ba5d11..5d4aee7fc6 100644
--- a/source/java/org/alfresco/rest/api/impl/NodesImpl.java
+++ b/source/java/org/alfresco/rest/api/impl/NodesImpl.java
@@ -341,7 +341,7 @@ public class NodesImpl implements Nodes
             ContentModel.PROP_LOCK_OWNER,
             ContentModel.PROP_WORKING_COPY_OWNER);
 
-    private final static Map<String,QName> MAP_PARAM_QNAME;
+    public final static Map<String,QName> PARAM_SYNONYMS_QNAME;
     static
     {
         Map<String,QName> aMap = new HashMap<>(9);
@@ -356,7 +356,7 @@ public class NodesImpl implements Nodes
         aMap.put(PARAM_SIZEINBYTES, GetChildrenCannedQuery.SORT_QNAME_CONTENT_SIZE);
         aMap.put(PARAM_NODETYPE, GetChildrenCannedQuery.SORT_QNAME_NODE_TYPE);
 
-        MAP_PARAM_QNAME = Collections.unmodifiableMap(aMap);
+        PARAM_SYNONYMS_QNAME = Collections.unmodifiableMap(aMap);
     }
 
     // list children filtering (via where clause)
@@ -1259,7 +1259,7 @@ public class NodesImpl implements Nodes
             sortProps = new ArrayList<>(sortCols.size());
             for (SortColumn sortCol : sortCols)
             {
-                QName propQname = MAP_PARAM_QNAME.get(sortCol.column);
+                QName propQname = PARAM_SYNONYMS_QNAME.get(sortCol.column);
                 if (propQname == null)
                 {
                     propQname = createQName(sortCol.column);
diff --git a/source/java/org/alfresco/rest/api/search/impl/SearchMapper.java b/source/java/org/alfresco/rest/api/search/impl/SearchMapper.java
index f569416c30..c4fce0adee 100644
--- a/source/java/org/alfresco/rest/api/search/impl/SearchMapper.java
+++ b/source/java/org/alfresco/rest/api/search/impl/SearchMapper.java
@@ -45,7 +45,9 @@ import org.alfresco.service.cmr.search.SearchParameters;
 import org.alfresco.rest.api.model.Node;
 import org.alfresco.service.cmr.search.SearchParameters.Operator;
 import org.alfresco.service.cmr.search.SearchParameters.SortDefinition;
+import org.alfresco.service.cmr.search.SearchParameters.SortDefinition.SortType;
 import org.alfresco.service.cmr.search.SearchService;
+import org.alfresco.service.namespace.QName;
 import org.alfresco.util.ParameterCheck;
 import org.apache.commons.lang.NotImplementedException;
 
@@ -55,6 +57,7 @@ import static org.alfresco.rest.api.Nodes.PARAM_INCLUDE_ISLINK;
 import static org.alfresco.rest.api.Nodes.PARAM_INCLUDE_PATH;
 import static org.alfresco.rest.api.Nodes.PARAM_INCLUDE_ASPECTNAMES;
 import static org.alfresco.rest.api.Nodes.PARAM_INCLUDE_PROPERTIES;
+import static org.alfresco.rest.api.impl.NodesImpl.PARAM_SYNONYMS_QNAME;
 import static org.alfresco.service.cmr.search.SearchService.*;
 
 import java.util.ArrayList;
@@ -177,7 +180,10 @@ public class SearchMapper
 
                 try
                 {
-                    sp.addSort(sortDef.toDefinition());
+                    SortType sortType = SortType.valueOf(sortDef.getType());
+                    String field = sortDef.getField();
+                    QName propQname = PARAM_SYNONYMS_QNAME.get(field);
+                    sp.addSort(new SortDefinition(sortType, propQname==null?field:propQname.toString(), sortDef.isAscending()));
                 }
                 catch (IllegalArgumentException e)
                 {
diff --git a/source/java/org/alfresco/rest/api/search/model/SortDef.java b/source/java/org/alfresco/rest/api/search/model/SortDef.java
index 92be2ba976..7f83d567bc 100644
--- a/source/java/org/alfresco/rest/api/search/model/SortDef.java
+++ b/source/java/org/alfresco/rest/api/search/model/SortDef.java
@@ -59,15 +59,13 @@ public class SortDef
         return type;
     }
 
-    /**
-     * You are allowed to create an instance of this class that has an invalid sortType
-     * but this method will validate the definition is correct and return it.
-     *
-     * @return SortDefinition
-     */
-    public SortDefinition toDefinition()
+    public String getField()
     {
-        return new SortDefinition(SortType.valueOf(type), field, ascending);
+        return field;
     }
 
+    public boolean isAscending()
+    {
+        return ascending;
+    }
 }
diff --git a/source/test-java/org/alfresco/rest/api/search/SearchMapperTests.java b/source/test-java/org/alfresco/rest/api/search/SearchMapperTests.java
index b9bf861e99..bdb2cfa8bc 100644
--- a/source/test-java/org/alfresco/rest/api/search/SearchMapperTests.java
+++ b/source/test-java/org/alfresco/rest/api/search/SearchMapperTests.java
@@ -193,6 +193,23 @@ public class SearchMapperTests
             }
         });
 
+        searchParameters = new SearchParameters();
+        searchMapper.fromSort(searchParameters, Arrays.asList(new SortDef("FIELD", "createdAt", true)));
+        assertEquals(1 , searchParameters.getSortDefinitions().size());
+        assertEquals("{http://www.alfresco.org/model/content/1.0}created", searchParameters.getSortDefinitions().get(0).getField());
+
+        searchParameters = new SearchParameters();
+        searchMapper.fromSort(searchParameters, Arrays.asList(new SortDef("FIELD", "cm:created", true)));
+        assertEquals("cm:created", searchParameters.getSortDefinitions().get(0).getField());
+
+        searchParameters = new SearchParameters();
+        searchMapper.fromSort(searchParameters, Arrays.asList(new SortDef("FIELD", "modifiedByUser", true)));
+        assertEquals("{http://www.alfresco.org/model/content/1.0}modifier", searchParameters.getSortDefinitions().get(0).getField());
+
+        searchParameters = new SearchParameters();
+        searchMapper.fromSort(searchParameters, Arrays.asList(new SortDef("FIELD", "nodeType", true)));
+        assertEquals("{}TYPE", searchParameters.getSortDefinitions().get(0).getField());
+
         searchParameters = new SearchParameters();
         searchParameters.setLanguage(SearchMapper.CMIS);
         try