diff --git a/demos/various/SB-CLIENT-256k-08180000-128k-20060000/main.c b/demos/various/SB-CLIENT-256k-08180000-128k-20060000/main.c
index 0de959388..37099389d 100644
--- a/demos/various/SB-CLIENT-256k-08180000-128k-20060000/main.c
+++ b/demos/various/SB-CLIENT-256k-08180000-128k-20060000/main.c
@@ -15,6 +15,7 @@
 */
 
 #include <stdio.h>
+#include <dirent.h>
 
 #include "sbuser.h"
 
@@ -23,7 +24,19 @@
  */
 int main(void) {
   unsigned i = 1U;
+  DIR *dirp;
 
+  sbSleepMilliseconds(2000);
+  dirp = opendir("/");
+  if (dirp != NULL) {
+    struct dirent *dep;
+
+    while ((dep = readdir(dirp)) != NULL) {
+      printf("(%u) %s\r\n", dep->d_type, dep->d_name);
+    }
+
+    closedir(dirp);
+  }
   while (true) {
     printf("#1 Hello World (%u)!!\r\n", i++);
     sbSleepMilliseconds(500);