[Minor] Multimap: Stringify symbol options

diff --git a/src/plugins/lua/multimap.lua b/src/plugins/lua/multimap.lua
index 13316583ca193d541138f9a7fdd8fee273a16872..347dee9bcc0208c6c566a7fb93765447aaa50fd5 100644 (file)
--- a/src/plugins/lua/multimap.lua
+++ b/src/plugins/lua/multimap.lua
@@ -590,7 +590,7 @@ local function multimap_callback(task, rule)
 
 
     if opt then
-      task:insert_result(forced, symbol, score, opt)
+      task:insert_result(forced, symbol, score, tostring(opt))
     else
       task:insert_result(forced, symbol, score)
     end