diff --git a/deepin-devicemanager/src/GenerateDevice/DeviceGenerator.cpp b/deepin-devicemanager/src/GenerateDevice/DeviceGenerator.cpp
index 09fa3731..ca3c4343 100644
--- a/deepin-devicemanager/src/GenerateDevice/DeviceGenerator.cpp
+++ b/deepin-devicemanager/src/GenerateDevice/DeviceGenerator.cpp
@@ -317,7 +317,7 @@ void DeviceGenerator::generatorMonitorDevice()
 
 bool isValidLogicalName(const QString& logicalName)
 {
-    if (logicalName.contains("p2p", Qt::CaseInsensitive) || logicalName.isEmpty())
+    if (logicalName.startsWith("p2p", Qt::CaseInsensitive) || logicalName.isEmpty())
         return false;
 
     QString addressFilePath = "/sys/class/net/" + logicalName;