diff --git a/tests/utils.py b/tests/utils.py
index fe728993b..eac280c4c 100644
--- a/tests/utils.py
+++ b/tests/utils.py
@@ -316,6 +316,9 @@ class LightningD(TailableProc):
         for k, v in sorted(self.opts.items()):
             if v is None:
                 opts.append("--{}".format(k))
+            elif isinstance(v, list):
+                for i in v:
+                    opts.append("--{}={}".format(k, i))
             else:
                 opts.append("--{}={}".format(k, v))