diff --git a/src/kit/shell/src/shellEngine.c b/src/kit/shell/src/shellEngine.c
index c8df17d6aef78403221aba12248836572f1cfc9f..277dc45f8e411a60dcd29b8d072a5e83bdc2146b 100644
--- a/src/kit/shell/src/shellEngine.c
+++ b/src/kit/shell/src/shellEngine.c
@@ -786,7 +786,7 @@ void read_history() {
 }
 
 void write_history() {
-  char f_history[128];
+  char f_history[TSDB_FILENAME_LEN];
   get_history_path(f_history);
 
   FILE *f = fopen(f_history, "w");
diff --git a/src/kit/shell/src/shellLinux.c b/src/kit/shell/src/shellLinux.c
index 69bab44985c242db27ddc4666ef5400fee481e55..6f5ea33d79f09219f49ee4094de2c377648b2290 100644
--- a/src/kit/shell/src/shellLinux.c
+++ b/src/kit/shell/src/shellLinux.c
@@ -409,7 +409,7 @@ void set_terminal_mode() {
   }
 }
 
-void get_history_path(char *history) { sprintf(history, "%s/%s", getenv("HOME"), HISTORY_FILE); }
+void get_history_path(char *history) { snprintf(history, TSDB_FILENAME_LEN, "%s/%s", getenv("HOME"), HISTORY_FILE); }
 
 void clearScreen(int ecmd_pos, int cursor_pos) {
   struct winsize w;