diff --git a/wireshark_gen/templates/openflow.lua b/wireshark_gen/templates/openflow.lua
index 09ebcc4..931843d 100644
--- a/wireshark_gen/templates/openflow.lua
+++ b/wireshark_gen/templates/openflow.lua
@@ -185,6 +185,7 @@
         protocol = "OF " .. openflow_versions[version_val]
     end
 
+    local info = "unknown"
     info = of_message_dissectors[version_val][type_val](reader, subtree)
 
     return protocol, info