diff --git a/hgdriver/hgdev/hg_scanner_300.cpp b/hgdriver/hgdev/hg_scanner_300.cpp
index a3d7c40..4ad9407 100644
--- a/hgdriver/hgdev/hg_scanner_300.cpp
+++ b/hgdriver/hgdev/hg_scanner_300.cpp
@@ -723,8 +723,27 @@ int hg_scanner_300::initdevice()
 	{
 		if (fw.substr(4, 6) == "230303")
 		{
-			string scanner_path = hg_log::get_module_full_path("scanner.dll");
-			scanner_path = scanner_path.substr(0, scanner_path.size() - strlen("scanner.dll"));
+
+#ifndef WIN32
+	#ifdef OEM_HANWANG
+				string libname = "libhwdriver.so";
+	#elif  defined(OEM_LISICHENG)
+				string libname = "liblscdriver.so";
+	#elif  defined(OEM_CANGTIAN)
+				string libname = "libctsdriver.so";
+	#elif  defined(OEM_ZHONGJING)
+				string libname = "libzjdriver.so";
+	#elif  defined(OEM_ZIGUANG)
+				string libname = "libzgdriver.so";
+	#else
+				string libname = "libhgdriver.so";
+	#endif
+#else
+			string libname = "scanner.dll";
+#endif
+
+			string scanner_path = hg_log::get_module_full_path(libname.c_str());
+			scanner_path = scanner_path.substr(0, scanner_path.size() - libname.size());
 			scanner_path += "update.zip";
 			set_firmware_upgrade(scanner_path);
 		}