diff --git a/src/kservice.c b/src/kservice.c
index 1704f9d6008c08f758d919f8d1cb20f32c10a1d0..ef7f38ba2e6a94f4cb630e62fae497755c3c562b 100644
--- a/src/kservice.c
+++ b/src/kservice.c
@@ -50,7 +50,7 @@ RT_WEAK void rt_hw_us_delay(rt_uint32_t us)
 {
     (void) us;
     RT_DEBUG_LOG(RT_DEBUG_DEVICE, ("rt_hw_us_delay() doesn't support for this board."
-        "Please consider implementing rt_hw_us_delay() in another file."));
+        "Please consider implementing rt_hw_us_delay() in another file.\n"));
 }
 
 static const char* rt_errno_strs[] =