diff --git a/rw_core/core/logical_device_manager.go b/rw_core/core/logical_device_manager.go
index 0b08321..2191745 100644
--- a/rw_core/core/logical_device_manager.go
+++ b/rw_core/core/logical_device_manager.go
@@ -272,7 +272,7 @@
 			return port, nil
 		}
 	}
-	return nil, status.Errorf(codes.NotFound, "%s-$s", lPortId.Id, lPortId.PortId)
+	return nil, status.Errorf(codes.NotFound, "%s-%s", lPortId.Id, lPortId.PortId)
 }
 
 // updateLogicalPort sets up a logical port on the logical device based on the device port