diff --git a/src/luaapi.c b/src/luaapi.c
index ba15726..2c17fe3 100644
--- a/src/luaapi.c
+++ b/src/luaapi.c
@@ -1856,7 +1856,7 @@ static int dagame_ray_get(lua_State *L) {
 		
 		return 1;
 	} else if(!strcmp(key, "ready")) {
-		lua_pushboolean(L, !isnanf(lr->out[0]));
+		lua_pushboolean(L, !isnan(lr->out[0]));
 		
 		return 1;
 	}