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 eb4c22ceab..334f64e252 100644
--- a/source/java/org/alfresco/rest/api/search/impl/SearchMapper.java
+++ b/source/java/org/alfresco/rest/api/search/impl/SearchMapper.java
@@ -483,6 +483,7 @@ public class SearchMapper
                     {
                         interval.getSets().addAll(globalSets);
                     }
+                    ParameterCheck.mandatoryCollection("facetIntervals intervals sets", interval.getSets());
                 }
             }