diff --git a/modules/client/back/models/business.json b/modules/client/back/models/business.json
index 1a500d444..dc6cd0bcd 100644
--- a/modules/client/back/models/business.json
+++ b/modules/client/back/models/business.json
@@ -42,7 +42,7 @@
             "type": "string"
         },
         "departmentFk": {
-            "type": "number"
+            "type": "string"
         },
         "workerBusinessProfessionalCategoryFk": {
             "type": "number"
@@ -91,7 +91,8 @@
         "companyCode": {
             "type": "belongsTo",
             "model": "Company",
-            "foreignKey": "companyCodeFk"
+            "foreignKey": "companyCodeFk",
+            "primaryKey": "code"
         },
         "reasonEnd": {
             "type": "belongsTo",
@@ -101,7 +102,8 @@
         "occupationCode": {
             "type": "belongsTo",
             "model": "OccupationCode",
-            "foreignKey":"occupationCodeFk"
+            "foreignKey":"occupationCodeFk",
+            "primaryKey": "code"
         },
         "payrollCategory": {
             "type": "belongsTo",
diff --git a/modules/client/back/models/occupationCode.json b/modules/client/back/models/occupation-code.json
similarity index 100%
rename from modules/client/back/models/occupationCode.json
rename to modules/client/back/models/occupation-code.json
diff --git a/modules/client/back/models/worker-business-type.json b/modules/client/back/models/worker-business-type.json
index 146bac7ab..648ce3fd2 100644
--- a/modules/client/back/models/worker-business-type.json
+++ b/modules/client/back/models/worker-business-type.json
@@ -8,7 +8,8 @@
     },
     "properties": {
         "id": {
-            "type": "number"
+            "type": "number",
+            "id": true
         },
         "name": {
             "type": "string"