diff --git a/patches/common/chromium/.patches b/patches/common/chromium/.patches
index b5ccb10a5f58..3ad2a20b084e 100644
--- a/patches/common/chromium/.patches
+++ b/patches/common/chromium/.patches
@@ -70,3 +70,4 @@ revert_build_swiftshader_for_arm32.patch
 fix_disable_usage_of_abort_report_np_in_mas_builds.patch
 fix_disable_usage_of_pthread_fchdir_np_and_pthread_chdir_np_in_mas.patch
 fix_disable_usage_of_setapplicationisdaemon_and.patch
+disable_custom_libcxx_on_windows.patch
diff --git a/patches/common/chromium/disable_custom_libcxx_on_windows.patch b/patches/common/chromium/disable_custom_libcxx_on_windows.patch
new file mode 100644
index 000000000000..f8a5b9fbdaef
--- /dev/null
+++ b/patches/common/chromium/disable_custom_libcxx_on_windows.patch
@@ -0,0 +1,20 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Samuel Attard <sattard@slack-corp.com>
+Date: Fri, 29 Mar 2019 11:04:46 -0700
+Subject: disable custom libcxx on windows
+
+
+diff --git a/build/config/c++/c++.gni b/build/config/c++/c++.gni
+index 5d45ff18455275e2ab416030fb01b103c7a630cf..39774eb51b112e02a9aa9c5288e8b52e33fdcb17 100644
+--- a/build/config/c++/c++.gni
++++ b/build/config/c++/c++.gni
+@@ -13,7 +13,8 @@ declare_args() {
+   # TODO(https://crbug.com/942939): Re-enable libc++ on Windows with libfuzzer.
+   use_custom_libcxx =
+       is_fuchsia || is_android || is_mac ||
+-      (is_win && is_clang && !use_libfuzzer) ||
++      # Do not use custom libcxx on windows
++      # (is_win && is_clang && !use_libfuzzer) ||
+       (is_linux &&
+        (!is_chromeos || default_toolchain != "//build/toolchain/cros:target"))
+