diff --git a/pressure-vessel/populate-depot.py b/pressure-vessel/populate-depot.py
index 048ba9d106e4e8f4836216185665cc13ba42e939..0a7a4c15a11e7c2306a3b15adbbc8b9f116ac01d 100755
--- a/pressure-vessel/populate-depot.py
+++ b/pressure-vessel/populate-depot.py
@@ -670,6 +670,7 @@ class Main:
                     manifest=dict(
                         commandline=' '.join(words),
                         version='2',
+                        use_tool_subprocess_reaper='1',
                     )
                 )       # type: Dict[str, Any]
                 if runtime.suite == 'soldier':