diff --git a/pipeline/processor.go b/pipeline/processor.go
index de4cd0ea..232a32bf 100644
--- a/pipeline/processor.go
+++ b/pipeline/processor.go
@@ -414,6 +414,7 @@ func (p *processor) Spawn(parent *Event, nodes []*insaneJSON.Node) {
 			child.stage = eventStageOutput
 			p.output.Out(child)
 		}
+		child.Root.ReleaseMem()
 	}
 
 	if p.busyActionsTotal == 0 {