diff --git a/app.db b/app.db
index df0ac92..922b4dd 100644
Binary files a/app.db and b/app.db differ
diff --git a/src/main/java/com/iflytop/digester/underframework/UfCmdSnippetExecutor.java b/src/main/java/com/iflytop/digester/underframework/UfCmdSnippetExecutor.java
index e48b20d..f1d8b7d 100644
--- a/src/main/java/com/iflytop/digester/underframework/UfCmdSnippetExecutor.java
+++ b/src/main/java/com/iflytop/digester/underframework/UfCmdSnippetExecutor.java
@@ -75,8 +75,9 @@ public class UfCmdSnippetExecutor {
         for ( JsonNode cmdNode : cmdsJsonTree ) {
             var cmdId = cmdNode.get("cmdId").asText();
             var cmdParams = cmdNode.get("params").asText();
-            if ( Boolean.TRUE.equals(logEnabled) ) {
-                LOG.info("[Snippet Execute] : ∟ {}", cmdNode.get("desc").asText());
+            var desc = cmdNode.get("desc");
+            if ( Boolean.TRUE.equals(logEnabled) && null != desc ) {
+                LOG.info("[Snippet Execute] : ∟ {}", desc.asText());
             }
             this.executeStep(cmdId, cmdParams);
         }