diff --git a/src/unix/fs.c b/src/unix/fs.c
index 8769f18d..37da7b63 100644
--- a/src/unix/fs.c
+++ b/src/unix/fs.c
@@ -154,7 +154,11 @@ static ssize_t uv__fs_read(uv_fs_t* req) {
 }
 
 
+#if defined(__linux__) || defined(__sun)
 static int uv__fs_readdir_filter(const struct dirent* dent) {
+#else
+static int uv__fs_readdir_filter(struct dirent* dent) {
+#endif
   return strcmp(dent->d_name, ".") != 0 && strcmp(dent->d_name, "..") != 0;
 }