diff --git a/misc/db_schema.yaml b/misc/db_schema.yaml
index 540f9b601b..5320105ac4 100644
--- a/misc/db_schema.yaml
+++ b/misc/db_schema.yaml
@@ -1346,7 +1346,7 @@ services:
     service_message: { Field: service_message, Type: text, 'Null': false, Default: null, Extra: '' }
     service_param: { Field: service_param, Type: text, 'Null': false, Default: null, Extra: '' }
     service_status: { Field: service_status, Type: tinyint(4), 'Null': false, Default: '0', Extra: '' }
-    service_type: { Field: service_type, Type: varchar(16), 'Null': false, Default: null, Extra: '' }
+    service_type: { Field: service_type, Type: varchar(255), 'Null': false, Default: null, Extra: '' }
   Indexes:
     PRIMARY: { Name: PRIMARY, Columns: [service_id], Unique: true, Type: BTREE }
     service_host: { Name: service_host, Columns: [device_id], Unique: false, Type: BTREE }
diff --git a/sql-schema/186.sql b/sql-schema/186.sql
new file mode 100644
index 0000000000..317ce7ce3e
--- /dev/null
+++ b/sql-schema/186.sql
@@ -0,0 +1 @@
+ALTER TABLE `services` MODIFY `service_type` varchar(255)  NOT NULL;