diff --git a/src/ert/scheduler/event.py b/src/ert/scheduler/event.py
index 470e861fe23..7ba4af80ac9 100644
--- a/src/ert/scheduler/event.py
+++ b/src/ert/scheduler/event.py
@@ -7,14 +7,14 @@
 @dataclass
 class StartedEvent:
     iens: int
-    exec_hosts: str = ""
+    exec_hosts: str = "-"
 
 
 @dataclass
 class FinishedEvent:
     iens: int
     returncode: int
-    exec_hosts: str = ""
+    exec_hosts: str = "-"
 
 
 Event = Union[StartedEvent, FinishedEvent]