diff --git a/CHANGELOG.md b/CHANGELOG.md
index ae28b00f..1d04aaf9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ v1.4.5 [unreleased]
 -------------------
 ### Bugfixes
 -   [#62](https://github.com/latera/camunda-ext/pull/62) Fix OTRS entity path
+-   [#60](https://github.com/latera/camunda-ext/pull/60) Fix saving JSON when update HOMS order
 
 v1.4.4 [2020-04-17]
 -------------------
diff --git a/src/org/camunda/latera/bss/utils/Order.groovy b/src/org/camunda/latera/bss/utils/Order.groovy
index aafa4006..9d203d43 100644
--- a/src/org/camunda/latera/bss/utils/Order.groovy
+++ b/src/org/camunda/latera/bss/utils/Order.groovy
@@ -13,7 +13,9 @@ import static org.camunda.latera.bss.utils.DateTimeUtil.iso
 import static org.camunda.latera.bss.utils.StringUtil.forceNvl as nvlString
 import static org.camunda.latera.bss.utils.ListUtil.forceNvl as nvlList
 import static org.camunda.latera.bss.utils.ListUtil.parse as parseList
+import static org.camunda.latera.bss.utils.ListUtil.isList
 import static org.camunda.latera.bss.utils.MapUtil.parse  as parseMap
+import static org.camunda.latera.bss.utils.MapUtil.isMap
 import org.camunda.latera.bss.connectors.Minio
 
 class Order implements GroovyObject {
@@ -215,7 +217,8 @@ class Order implements GroovyObject {
           value = value as String
         } catch (Exception e) {}
       }
-      if (name.endsWith('List') || name.endsWith('JSON') || name.endsWith('Map')) {
+      if ((name.endsWith('List') || name.endsWith('JSON') || name.endsWith('Map')) &&
+          (isList(value) || isMap(value))) {
         try {
           // servicesMap: [a:1, b:'2'] -> servicesMap: '{a:1, b:'2'}'
           // serviceList: [1, 2, '3']  -> serviceList: "[1,2,'3']"