diff --git a/codec.go b/codec.go
index 031f12f..67cc9c3 100644
--- a/codec.go
+++ b/codec.go
@@ -71,7 +71,6 @@ func setupCodec() error {
 	cachedOpcodeSets = make([]*opcodeSet, addrRange)
 	existsCachedOpcodeSets = true
 	cachedDecoder = make([]decoder, addrRange)
-	existsCachedDecoder = true
 	baseTypeAddr = min
 	maxTypeAddr = max
 	return nil
diff --git a/decode_slice.go b/decode_slice.go
index 0005434..6c26b11 100644
--- a/decode_slice.go
+++ b/decode_slice.go
@@ -248,7 +248,12 @@ func (d *sliceDecoder) decode(buf []byte, cursor int64, p unsafe.Pointer) (int64
 				}
 				cursor++
 			}
+		case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
+			return 0, d.errNumber([]byte{buf[cursor]}, cursor)
+		default:
+			goto ERROR
 		}
 	}
+ERROR:
 	return 0, errUnexpectedEndOfJSON("slice", cursor)
 }