diff --git a/src/main/java/org/bdware/server/CMHttpServer.java b/src/main/java/org/bdware/server/CMHttpServer.java
index 9de4c3e..157d4bc 100644
--- a/src/main/java/org/bdware/server/CMHttpServer.java
+++ b/src/main/java/org/bdware/server/CMHttpServer.java
@@ -139,6 +139,10 @@ public class CMHttpServer {
             try {
                 String[] classes = cmdConf.debug.split(",");
                 for (String clz : classes) {
+                    if ("all".equalsIgnoreCase(clz)) {
+                        Configurator.setRootLevel(Level.DEBUG);
+                        break;
+                    }
                     Configurator.setLevel(clz, Level.DEBUG);
                     LOGGER.warn("set debug: " + clz);
                 }