diff --git a/laborious/utils/repository/opc_repository.py b/laborious/utils/repository/opc_repository.py
index 3afa791..b103de8 100644
--- a/laborious/utils/repository/opc_repository.py
+++ b/laborious/utils/repository/opc_repository.py
@@ -182,7 +182,10 @@ class OpcRepository(SientiaMonitoring):
                 value=1,
             )
 
-            await self.emit_metric(metrics.OPC_CONNECTIONS_TOTAL, tags)
+            await self.emit_metric(metrics.OPC_CONNECTIONS_TOTAL, {
+                **tags,
+                'server_url': self.url,
+            })
 
             return True, {}
         except Exception as e: