diff --git a/modules/extra_networks.py b/modules/extra_networks.py
index 34a3ba63f..f4743928c 100644
--- a/modules/extra_networks.py
+++ b/modules/extra_networks.py
@@ -26,7 +26,7 @@ class ExtraNetworkParams:
         self.named = {}
 
         for item in self.items:
-            parts = item.split('=', 2)
+            parts = item.split('=', 2) if isinstance(item, str) else [item]
             if len(parts) == 2:
                 self.named[parts[0]] = parts[1]
             else: