diff --git a/fsutils/mkgpt/mkgpt.c b/fsutils/mkgpt/mkgpt.c
index 5b2c3d3f5..953b7fdd8 100644
--- a/fsutils/mkgpt/mkgpt.c
+++ b/fsutils/mkgpt/mkgpt.c
@@ -31,6 +31,7 @@
 #include <unistd.h>
 #include <string.h>
 
+#include <sys/random.h>
 #include <sys/stat.h>
 #include <sys/ioctl.h>
 
@@ -128,12 +129,12 @@ static const uint8_t g_partition_type_swap[16] =
 
 static void get_uuid(FAR uint8_t *uuid)
 {
-  int fd;
-  fd = open("/dev/urandom", O_RDONLY);
-  if (fd > 0)
+  /* call getrandom to read  /dev/urandom */
+
+  if (getrandom(uuid, 16, 0) < 0)
     {
-      read(fd, uuid, 16);
-      close(fd);
+      fprintf(stderr, "error read primary partition table\n");
+      return;
     }
 }