diff --git a/dolphinscheduler-spi/src/main/java/org/apache/dolphinscheduler/spi/plugin/DolphinPluginDiscovery.java b/dolphinscheduler-spi/src/main/java/org/apache/dolphinscheduler/spi/plugin/DolphinPluginDiscovery.java
index b5335139bf..c09bf71da2 100644
--- a/dolphinscheduler-spi/src/main/java/org/apache/dolphinscheduler/spi/plugin/DolphinPluginDiscovery.java
+++ b/dolphinscheduler-spi/src/main/java/org/apache/dolphinscheduler/spi/plugin/DolphinPluginDiscovery.java
@@ -105,7 +105,7 @@ final class DolphinPluginDiscovery {
             public FileVisitResult visitFile(Path file, BasicFileAttributes attributes) {
                 if (file.getFileName().toString().endsWith(JAVA_CLASS_FILE_SUFFIX)) {
                     String name = file.subpath(base.getNameCount(), file.getNameCount()).toString();
-                    list.add(javaName(name.substring(0, name.length() - JAVA_CLASS_FILE_SUFFIX.length())));
+                    list.add(convertClassName(name.substring(0, name.length() - JAVA_CLASS_FILE_SUFFIX.length())));
                 }
                 return FileVisitResult.CONTINUE;
             }
@@ -143,4 +143,8 @@ final class DolphinPluginDiscovery {
     private static String javaName(String binaryName) {
         return binaryName.replace('/', '.');
     }
+
+    private static String convertClassName(String pathName) {
+        return pathName.replace(File.separatorChar, '.');
+    }
 }