diff --git a/dagflow/dagflow.py b/dagflow/dagflow.py
index 017ec61..feeab9e 100644
--- a/dagflow/dagflow.py
+++ b/dagflow/dagflow.py
@@ -322,7 +322,7 @@ where backid=${backid}$
 				'ctx': ctx,
 				'node': node
 			}
-			on_array = await self.get_multiple_array(m_on):
+			on_array = await self.get_multiple_array(m_on)
 			for e in on_array:
 				nnodes.add((edge['to'], str(e)))
 		for node, ctx_ext in nnodes: