1 files changed, 1 insertions, 1 deletions
diff --git a/src/lapi.js b/src/lapi.js
index e813313..6b853ae 100644
--- a/src/lapi.js
+++ b/src/lapi.js
@@ -778,7 +778,7 @@ const lua_isinteger = function(L, idx) {
 };
 
 const lua_isnumber = function(L, idx) {
-    return lvm.tonumber(L, idx);
+    return lvm.tonumber(index2addr(L, idx)) !== false;
 };
 
 const lua_isstring = function(L, idx) {