diff --git a/src/systemtime/libkydate.c b/src/systemtime/libkydate.c
index 99d76db..4cb5123 100644
--- a/src/systemtime/libkydate.c
+++ b/src/systemtime/libkydate.c
@@ -1850,7 +1850,7 @@ void kdk_free_logn_dateinfo(kdk_logn_dateinfo *date)
 int kdk_system_set_long_dateformat(char *format)
 {
 	int i = 0;
-	char tmp[64] = {0};
+	char tmp[128] = {0};
 	char *homeDir = NULL;
 	strcpy(tmp, format);
 	GKeyFile *config = g_key_file_new();