diff --git a/netfuse/main.py b/netfuse/main.py
index 38be469..e4ddad2 100644
--- a/netfuse/main.py
+++ b/netfuse/main.py
@@ -92,6 +92,7 @@ def dump(
     host_entries += "\n" + "*" * 83 + "\n"
     host_entries += WARNING1 + "\n" + WARNING2
     host_entries += "\n" + "*" * 83 + "\n\n"
+    suffix = suffix or ""
     for device in module.attached_devices():
         if device.ipv4_address:
             host_entries += f"{device.ipv4_address}\t{device.name}{suffix}\n"