diff --git a/components/libc/compilers/armlibc/syscalls.c b/components/libc/compilers/armlibc/syscalls.c
index 26ba3796fa45cb8db3a18a7d2ff5fd29f7e4a994..74097da58f72fea6cdf43276772daff5a70f1469 100644
--- a/components/libc/compilers/armlibc/syscalls.c
+++ b/components/libc/compilers/armlibc/syscalls.c
@@ -282,11 +282,18 @@ int _sys_seek(FILEHANDLE fh, long pos)
 /**
  * used by tmpnam() or tmpfile()
  */
+#if __ARMCC_VERSION >= 6190000
+void _sys_tmpnam(char *name, int fileno, unsigned maxlength)
+{
+    rt_snprintf(name, maxlength, "tem%03d", fileno);
+}
+#else
 int _sys_tmpnam(char *name, int fileno, unsigned maxlength)
 {
     rt_snprintf(name, maxlength, "tem%03d", fileno);
     return 1;
 }
+#endif /* __ARMCC_VERSION >= 6190000 */
 
 char *_sys_command_string(char *cmd, int len)
 {