diff --git a/src/os_win32.c b/src/os_win32.c
index 92bc8c1..2bf0fe7 100644
--- a/src/os_win32.c
+++ b/src/os_win32.c
@@ -8578,6 +8578,9 @@
     DWORD   result;
     int	    len;
 
+    if (silent_mode)
+	return 0;
+
     va_start(list, format);
     len = vim_vsnprintf((char *)buf, 100, (char *)format, list);
     va_end(list);