diff --git a/crossechoTangoDev/Crossecho.py b/crossechoTangoDev/Crossecho.py
index bcb3b8fbb766df8bc94f5998fe2333c3efa8e7cf..de6b9417667024a926e86b2c395ac0db27545945 100644
--- a/crossechoTangoDev/Crossecho.py
+++ b/crossechoTangoDev/Crossecho.py
@@ -51,7 +51,7 @@ class Crossecho(Device):
     )
 
     OPC_time_out = device_property(
-        dtype=, default_value=1000
+        dtype='uint', default_value=1000
     )
 
     # ----------
diff --git a/crossechoTangoDev/Crossecho.xmi b/crossechoTangoDev/Crossecho.xmi
index 4bb12c274716e0800a2c3a586e4fcba41d8c7212..44fd7a21da3d9bcd070638fb6f72a422087a525e 100644
--- a/crossechoTangoDev/Crossecho.xmi
+++ b/crossechoTangoDev/Crossecho.xmi
@@ -16,7 +16,7 @@
       <DefaultPropValue>55555</DefaultPropValue>
     </deviceProperties>
     <deviceProperties name="OPC_time_out" description="">
-      <type xsi:type="pogoDsl:ULongType"/>
+      <type xsi:type="pogoDsl:UIntType"/>
       <status abstract="false" inherited="false" concrete="true" concreteHere="true"/>
       <DefaultPropValue>1000</DefaultPropValue>
     </deviceProperties>