diff --git a/decoder/pools.go b/decoder/pools.go
index a2e6db63e..36ca50112 100644
--- a/decoder/pools.go
+++ b/decoder/pools.go
@@ -28,7 +28,7 @@ import (
 
 const (
     _MinSlice = 16
-    _MaxStack = 65536 // 64k slots
+    _MaxStack = 4096 // 64k slots
     _MaxStackBytes = _MaxStack * _PtrBytes
     _MaxDigitNums = 800  // used in atof fallback algorithm
 )