diff --git a/xos/synchronizer/steps/sync_imsi_back.py b/xos/synchronizer/steps/sync_imsi_back.py
index 7be4921..e81232c 100644
--- a/xos/synchronizer/steps/sync_imsi_back.py
+++ b/xos/synchronizer/steps/sync_imsi_back.py
@@ -66,6 +66,10 @@
             'UeStatus': 'ue_status'
         }
 
+        field_transformations = {
+            'UeStatus': ProgranHelpers.int_to_string,
+        }
+
         updated_imsi = []
 
         for i in res:
@@ -82,7 +86,7 @@
 
                 log.debug("IMSI %s is new, creating it" % i['IMSI'])
 
-            si = ProgranHelpers.update_fields(si, i, field_mapping,)
+            si = ProgranHelpers.update_fields(si, i, field_mapping, field_transformations)
 
             si.save()