diff --git a/examples/default/main.c b/examples/default/main.c
index 186df320e..341132535 100644
--- a/examples/default/main.c
+++ b/examples/default/main.c
@@ -135,18 +135,6 @@ void init_transceiver(void)
 }
 #endif /* MODULE_TRANSCEIVER */
 
-static int shell_readc(void)
-{
-    char c = 0;
-    (void) posix_read(uart0_handler_pid, &c, 1);
-    return c;
-}
-
-static void shell_putchar(int c)
-{
-    (void) putchar(c);
-}
-
 int main(void)
 {
     shell_t shell;
@@ -166,7 +154,7 @@ int main(void)
 
     (void) puts("Welcome to RIOT!");
 
-    shell_init(&shell, NULL, UART0_BUFSIZE, shell_readc, shell_putchar);
+    shell_init(&shell, NULL, UART0_BUFSIZE, uart0_readc, uart0_putc);
 
     shell_run(&shell);
     return 0;