diff --git a/startup_lite/syspara_posix/src/ParameterTest.cpp b/startup_lite/syspara_posix/src/ParameterTest.cpp
index df78bd6072b38e70758dbd93d4fb659d51161c47..46800f3df5570a7efe0ff4eb8c2a45feb632cafc 100755
--- a/startup_lite/syspara_posix/src/ParameterTest.cpp
+++ b/startup_lite/syspara_posix/src/ParameterTest.cpp
@@ -20,7 +20,7 @@ using namespace std;
 using namespace testing::ext;
 
 namespace StartUpLite {
-    static const int GET_DEF_PARA_FUN_MAX = 24;
+    static const int GET_DEF_PARA_FUN_MAX = 22;
     static const int MAX_LEN = 128;
     static const int WRONG_LEN = 2;