diff --git a/src/util/inc/tconfig.h b/src/util/inc/tconfig.h
index d03ce6e0f1..00dc65aa3d 100644
--- a/src/util/inc/tconfig.h
+++ b/src/util/inc/tconfig.h
@@ -20,7 +20,7 @@
 extern "C" {
 #endif
 
-#define TSDB_CFG_MAX_NUM    116  // 110 + 6 with lossy option
+#define TSDB_CFG_MAX_NUM    117  // 110 + 6(lossy) + 1(deadlock)
 #define TSDB_CFG_PRINT_LEN  23
 #define TSDB_CFG_OPTION_LEN 24
 #define TSDB_CFG_VALUE_LEN  41