diff --git a/src/ravi_jitshared.c b/src/ravi_jitshared.c
index 457b06e..f9d727c 100644
--- a/src/ravi_jitshared.c
+++ b/src/ravi_jitshared.c
@@ -592,8 +592,12 @@ static const char Lua_header[] =
     "	(ttisfloat(o) ? ((n) = fltvalue(o), 1) : \\\n"
     "	(ttisinteger(o) ? ((n) = cast_num(ivalue(o)), 1) : 0))\n"
     "#define intop(op,v1,v2) l_castU2S(l_castS2U(v1) op l_castS2U(v2))\n"
+    "#define nan (0./0.)\n"
+    "#define inf (1./0.)\n"
     "#define luai_numunm(L,a)        (-(a))\n";
 
+// FIXME - 'inf' and 'nan' above need to be sorted!
+
 // We can only compile a subset of op codes
 // and not all features are supported
 bool raviJ_cancompile(Proto *p) { (void)p; return true; }