diff --git a/zephyr/src/zephyr_getchar.c b/zephyr/src/zephyr_getchar.c
index 95912f3df2..246d86a2ef 100644
--- a/zephyr/src/zephyr_getchar.c
+++ b/zephyr/src/zephyr_getchar.c
@@ -23,7 +23,7 @@
 extern int mp_interrupt_char;
 void mp_keyboard_interrupt(void);
 
-static struct nano_sem uart_sem;
+static struct k_sem uart_sem;
 #define UART_BUFSIZE 256
 static uint8_t uart_ringbuf[UART_BUFSIZE];
 static uint8_t i_get, i_put;