1 files changed, 1 insertions, 1 deletions
diff --git a/src/NXP/Classes/Tokenizer.php b/src/NXP/Classes/Tokenizer.php
index f8056c3..77014b8 100644
--- a/src/NXP/Classes/Tokenizer.php
+++ b/src/NXP/Classes/Tokenizer.php
@@ -159,7 +159,7 @@ class Tokenizer
                         }
                         // could be in exponent, in which case negative should be added to the numberBuffer
                         if ($this->numberBuffer && $this->numberBuffer[strlen($this->numberBuffer) - 1] == 'e') {
-                            $this->numberBuffer .= '-';
+                            $this->numberBuffer .= $ch;
                             continue 2;
                         }
                     }