diff --git a/pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/cstring-includes.patch b/pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/cstring-includes.patch
new file mode 100644
index 000000000000..ea641791c400
--- /dev/null
+++ b/pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/cstring-includes.patch
@@ -0,0 +1,74 @@
+diff --git a/src/api/video/nv12_buffer.cc b/src/api/video/nv12_buffer.cc
+index ca9dcd867..89d28f23c 100644
+--- a/src/api/video/nv12_buffer.cc
++++ b/src/api/video/nv12_buffer.cc
+@@ -16,6 +16,8 @@
+ #include "third_party/libyuv/include/libyuv/convert.h"
+ #include "third_party/libyuv/include/libyuv/scale.h"
+ 
++#include <cstring>
++
+ namespace webrtc {
+ 
+ namespace {
+diff --git a/src/audio/utility/channel_mixer.cc b/src/audio/utility/channel_mixer.cc
+index 0f1e66387..33b771b0c 100644
+--- a/src/audio/utility/channel_mixer.cc
++++ b/src/audio/utility/channel_mixer.cc
+@@ -15,6 +15,8 @@
+ #include "rtc_base/logging.h"
+ #include "rtc_base/numerics/safe_conversions.h"
+ 
++#include <cstring>
++
+ namespace webrtc {
+ 
+ ChannelMixer::ChannelMixer(ChannelLayout input_layout,
+diff --git a/src/modules/audio_processing/aec3/alignment_mixer.cc b/src/modules/audio_processing/aec3/alignment_mixer.cc
+index 7f076dea8..ffd7242b5 100644
+--- a/src/modules/audio_processing/aec3/alignment_mixer.cc
++++ b/src/modules/audio_processing/aec3/alignment_mixer.cc
+@@ -10,6 +10,7 @@
+ #include "modules/audio_processing/aec3/alignment_mixer.h"
+ 
+ #include <algorithm>
++#include <cstring>
+ 
+ #include "rtc_base/checks.h"
+ 
+diff --git a/src/modules/desktop_capture/linux/wayland/shared_screencast_stream.cc b/src/modules/desktop_capture/linux/wayland/shared_screencast_stream.cc
+index 7ef1a030e..5b9ab7137 100644
+--- a/src/modules/desktop_capture/linux/wayland/shared_screencast_stream.cc
++++ b/src/modules/desktop_capture/linux/wayland/shared_screencast_stream.cc
+@@ -18,6 +18,7 @@
+ #include <spa/param/video/format-utils.h>
+ #include <sys/mman.h>
+ 
++#include <cstring>
+ #include <vector>
+ 
+ #include "absl/memory/memory.h"
+diff --git a/src/modules/video_coding/utility/ivf_file_reader.cc b/src/modules/video_coding/utility/ivf_file_reader.cc
+index 4c08ca613..f82f2bfcb 100644
+--- a/src/modules/video_coding/utility/ivf_file_reader.cc
++++ b/src/modules/video_coding/utility/ivf_file_reader.cc
+@@ -10,6 +10,7 @@
+ 
+ #include "modules/video_coding/utility/ivf_file_reader.h"
+ 
++#include <cstring>
+ #include <string>
+ #include <vector>
+ 
+diff --git a/src/net/dcsctp/packet/bounded_byte_writer.h b/src/net/dcsctp/packet/bounded_byte_writer.h
+index d754549e4..bf5e3ed42 100644
+--- a/src/net/dcsctp/packet/bounded_byte_writer.h
++++ b/src/net/dcsctp/packet/bounded_byte_writer.h
+@@ -12,6 +12,7 @@
+ #define NET_DCSCTP_PACKET_BOUNDED_BYTE_WRITER_H_
+ 
+ #include <algorithm>
++#include <cstring>
+ 
+ #include "api/array_view.h"
+ 
diff --git a/pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/tg_owt.nix b/pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/tg_owt.nix
index 6a05fd4e76ff..1a19557a1516 100644
--- a/pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/tg_owt.nix
+++ b/pkgs/applications/networking/instant-messengers/telegram/telegram-desktop/tg_owt.nix
@@ -47,6 +47,9 @@ stdenv.mkDerivation {
     # fix build with abseil 202508
     # upstream PR: https://github.com/desktop-app/tg_owt/pull/164
     ./abseil-202508.patch
+    # fix build with latest glibc
+    # upstream PR: https://github.com/desktop-app/tg_owt/pull/172
+    ./cstring-includes.patch
   ];
 
   postPatch = lib.optionalString stdenv.hostPlatform.isLinux ''