diff --git a/pkgs/development/libraries/c-ares/default.nix b/pkgs/development/libraries/c-ares/default.nix
index 2d9cf349b94e..4e7a3b2e97ba 100644
--- a/pkgs/development/libraries/c-ares/default.nix
+++ b/pkgs/development/libraries/c-ares/default.nix
@@ -26,11 +26,6 @@ stdenv.mkDerivation rec {
     hash = "sha256-kS3XzDs+innFL9f7nA9Ozwqqc+Re/aiAJmotbia4TvU=";
   };
 
-  patches = [
-    # Fix being unable to use Ipv6 link-local DNS servers. See: https://github.com/c-ares/c-ares/pull/997.
-    ./fix-link-local-dns-servers.patch
-  ];
-
   outputs = [
     "out"
     "dev"
diff --git a/pkgs/development/libraries/c-ares/fix-link-local-dns-servers.patch b/pkgs/development/libraries/c-ares/fix-link-local-dns-servers.patch
deleted file mode 100644
index 07a5b5f2084c..000000000000
--- a/pkgs/development/libraries/c-ares/fix-link-local-dns-servers.patch
+++ /dev/null
@@ -1,50 +0,0 @@
-From 0fbeb87f65ad9e9e6cead10d778291db71489f34 Mon Sep 17 00:00:00 2001
-From: iucoen <68678186+iucoen@users.noreply.github.com>
-Date: Thu, 5 Jun 2025 20:08:43 -0700
-Subject: [PATCH] Fix IPv6 link-local nameservers in /etc/resolv.conf (#997)
-
-There are two issues that broke link-local nameservers in resolv.conf
-1. channel->sock_funcs needs to be initialized before
-ares_init_by_sysconfig()
-2. The aif_nametoindex and aif_indextoname function pointers were not
-initlized at all.
----
- src/lib/ares_init.c                 | 4 ++--
- src/lib/ares_set_socket_functions.c | 2 ++
- 2 files changed, 4 insertions(+), 2 deletions(-)
-
-diff --git a/src/lib/ares_init.c b/src/lib/ares_init.c
-index ae78262a11..ce6181833c 100644
---- a/src/lib/ares_init.c
-+++ b/src/lib/ares_init.c
-@@ -271,6 +271,8 @@ int ares_init_options(ares_channel_t           **channelptr,
-     goto done;
-   }
- 
-+  ares_set_socket_functions_def(channel);
-+
-   /* Initialize Server List */
-   channel->servers =
-     ares_slist_create(channel->rand_state, server_sort_cb, server_destroy_cb);
-@@ -346,8 +348,6 @@ int ares_init_options(ares_channel_t           **channelptr,
-     goto done;
-   }
- 
--  ares_set_socket_functions_def(channel);
--
-   /* Initialize the event thread */
-   if (channel->optmask & ARES_OPT_EVENT_THREAD) {
-     ares_event_thread_t *e = NULL;
-diff --git a/src/lib/ares_set_socket_functions.c b/src/lib/ares_set_socket_functions.c
-index cfe434327d..9994e81df5 100644
---- a/src/lib/ares_set_socket_functions.c
-+++ b/src/lib/ares_set_socket_functions.c
-@@ -127,6 +127,8 @@ ares_status_t
-     channel->sock_funcs.asendto      = funcs->asendto;
-     channel->sock_funcs.agetsockname = funcs->agetsockname;
-     channel->sock_funcs.abind        = funcs->abind;
-+    channel->sock_funcs.aif_nametoindex = funcs->aif_nametoindex;
-+    channel->sock_funcs.aif_indextoname = funcs->aif_indextoname;
-   }
- 
-   /* Implement newer versions here ...*/
\ No newline at end of file