diff --git a/src/jit/dump.lua b/src/jit/dump.lua
index 1eca12a8..4458f1cf 100644
--- a/src/jit/dump.lua
+++ b/src/jit/dump.lua
@@ -580,7 +580,7 @@ local function dump_trace(what, tr, func, pc, otr, oex)
 end
 
 -- Dump recorded bytecode.
-local function dump_record(tr, func, pc, depth, callee)
+local function dump_record(_, func, pc, depth, callee)
   if depth ~= recdepth then
     recdepth = depth
     recprefix = rep(" .", depth)