diff --git a/polymer/eduke32/source/lunatic/defs_common.lua b/polymer/eduke32/source/lunatic/defs_common.lua
index 201ecedc3..1603d085d 100644
--- a/polymer/eduke32/source/lunatic/defs_common.lua
+++ b/polymer/eduke32/source/lunatic/defs_common.lua
@@ -16,7 +16,7 @@ local bit = require("bit")
 --   2: disable JIT compilation
 --   4: load LuaJIT's 'v' module, printing trace info
 --   8: load LuaJIT's 'dump' module, printing generated IR/machine code
-ffi.cdef "enum { _DEBUG_LUNATIC=1 }"
+ffi.cdef "enum { _DEBUG_LUNATIC=0 }"
 
 if (bit.band(ffiC._DEBUG_LUNATIC, 2)~=0) then
     require("jit").off()