diff --git a/src/timezone/zic.c b/src/timezone/zic.c
new file mode 100644
index 8d4347a..f9cbac9
*** a/src/timezone/zic.c
--- b/src/timezone/zic.c
*************** int
*** 3485,3491 ****
--- 3485,3494 ----
  link(const char *oldpath, const char *newpath)
  {
  	if (!CopyFile(oldpath, newpath, false))
+ 	{
+ 		_dosmaperr(GetLastError());
  		return -1;
+ 	}
  	return 0;
  }
  #endif