diff --git a/interfaces/innerkits/include/syspara/parameter.h b/interfaces/innerkits/include/syspara/parameter.h
index 3a5473f4dc9d3345fedea8c36a404d924901039c..2362b01cee38d1c6021e82cee3ee69b7343d4a55 100755
--- a/interfaces/innerkits/include/syspara/parameter.h
+++ b/interfaces/innerkits/include/syspara/parameter.h
@@ -26,6 +26,7 @@ extern "C" {
 #define PARAM_VALUE_LEN_MAX  96
 #define PARAM_NAME_LEN_MAX  96
 #define OS_FULL_NAME_LEN 128
+#define MAX_VALUE_LEN 128
 #define VERSION_ID_MAX_LEN 256
 
 static const char EMPTY_STR[] = { "" };