diff --git a/slate/slate.py b/slate/slate.py
index 294faf7..b7cd8e9 100644
--- a/slate/slate.py
+++ b/slate/slate.py
@@ -55,7 +55,7 @@ class Slate():
         self.consume(config, 'vars', {})
         return config
 
-    def _load_config(self, filename, name, stack=[]):
+    def _load_config(self, filename, name, stack):
         stack.append(f'{filename}:{name}')
         with open(filename, 'r') as f:
             docs = yaml.safe_load_all(f)
@@ -421,7 +421,7 @@ class Slate():
         if args.slurm:
             if args.ask_verify:
                 self.verify = True
-            self.run_slurm(args.config_experiments, config_exp_pairs)
+            self.run_slurm(' '.join(args.config_experiments.join(' ')), config_exp_pairs)
         else:
             self.run_local(config_exp_pairs, args.task_id)