diff --git a/src/kit/shell/inc/shell.h b/src/kit/shell/inc/shell.h
index 019f3e5d92d453a9df97ab0b4bb2c7614bf2210d..d0b7149541eb5ec2b9405e4989e35baa1372f16c 100644
--- a/src/kit/shell/inc/shell.h
+++ b/src/kit/shell/inc/shell.h
@@ -74,6 +74,7 @@ void source_file(TAOS* con, char* fptr);
 void source_dir(TAOS* con, SShellArguments* args);
 void shellCheck(TAOS* con, SShellArguments* args);
 void get_history_path(char* history);
+void shellCheck(TAOS* con, SShellArguments* args);
 void cleanup_handler(void* arg);
 void exitShell();
 int shellDumpResult(TAOS_RES* con, char* fname, int* error_no, bool printMode);
diff --git a/src/kit/shell/src/shellEngine.c b/src/kit/shell/src/shellEngine.c
index b9529aac8ec572083406f0d902d48f424ef4547b..0eb1248fad8fe78857b255d8861ea825ab501933 100644
--- a/src/kit/shell/src/shellEngine.c
+++ b/src/kit/shell/src/shellEngine.c
@@ -132,7 +132,6 @@ TAOS *shellInit(SShellArguments *args) {
   return con;
 }
 
-
 static bool isEmptyCommand(const char* cmd) {
   for (char c = *cmd++; c != 0; c = *cmd++) {
     if (c != ' ' && c != '\t' && c != ';') {