diff --git a/server/plugins/asanServiceSerialChecker.js b/server/plugins/asanServiceSerialChecker.js
index de52a58..4b82a2c 100644
--- a/server/plugins/asanServiceSerialChecker.js
+++ b/server/plugins/asanServiceSerialChecker.js
@@ -10,7 +10,7 @@ const serialChecker =  (serial, type = 'guaranteeSerial', g = 1) => {
     if (type === 'guaranteeSerial') exelsPath = guaranteeSerialsPath + `/${g}`;
     if (type === 'orginality') exelsPath = productSerialsPath + `/${g}`;
 
-    const lowerSerial = serial.toLowerCase();
+    const lowerSerial = serial.toLowerCase().replace("-", "").replace("_", "");
 
     try {
       const serialFiles = await fs.readdirSync(exelsPath);