diff --git a/libc/dns/resolv/res_state.c b/libc/dns/resolv/res_state.c
index 087a5e6..01f68e9 100644
--- a/libc/dns/resolv/res_state.c
+++ b/libc/dns/resolv/res_state.c
@@ -54,6 +54,7 @@
 
 typedef struct {
     int                  _h_errno;
+    // TODO: Have one __res_state per network so we don't have to repopulate frequently.
     struct __res_state  _nres[1];
     unsigned             _serial;
     struct prop_info*   _pi;