diff --git a/pkgs/development/libraries/qt-5/5.9/default.nix b/pkgs/development/libraries/qt-5/5.9/default.nix
index 5f28a29dd60..be84691e6c3 100644
--- a/pkgs/development/libraries/qt-5/5.9/default.nix
+++ b/pkgs/development/libraries/qt-5/5.9/default.nix
@@ -44,6 +44,7 @@ let
     qtserialport = [ ./qtserialport.patch ];
     qttools = [ ./qttools.patch ];
     qtwebengine = [ ./qtwebengine-no-build-skip.patch ]
+      ++ optional stdenv.cc.isClang ./qtwebengine-clang-fix.patch
       ++ optional stdenv.isDarwin ./qtwebengine-darwin-no-platform-check.patch;
     qtwebkit = [ ./qtwebkit.patch ];
     qtvirtualkeyboard = [
diff --git a/pkgs/development/libraries/qt-5/5.9/qtwebengine-clang-fix.patch b/pkgs/development/libraries/qt-5/5.9/qtwebengine-clang-fix.patch
new file mode 100644
index 00000000000..cf082cddd11
--- /dev/null
+++ b/pkgs/development/libraries/qt-5/5.9/qtwebengine-clang-fix.patch
@@ -0,0 +1,38 @@
+Fix a following build error:
+
+In file included from ../../3rdparty/chromium/device/bluetooth/bluetooth_remote_gatt_characteristic_mac.mm:7:
+In file included from ../../3rdparty/chromium/base/bind.h:8:
+../../3rdparty/chromium/base/bind_internal.h:214:31: error: cannot initialize a parameter of type 'NSError *' with an lvalue of type 'const long'
+    return (receiver.*method)(std::forward<RunArgs>(args)...);
+                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~
+../../3rdparty/chromium/base/bind_internal.h:285:20: note: in instantiation of function template specialization 'base::internal::FunctorTraits<void (device::BluetoothRemoteGat
+tCharacteristicMac::*)(NSError *), void>::Invoke<device::BluetoothRemoteGattCharacteristicMac *, const long &>' requested here
+    return Traits::Invoke(std::forward<Functor>(functor),
+                   ^
+../../3rdparty/chromium/base/bind_internal.h:361:43: note: in instantiation of function template specialization 'base::internal::InvokeHelper<false, void>::MakeItSo<void (devi
+ce::BluetoothRemoteGattCharacteristicMac::*const &)(NSError *), device::BluetoothRemoteGattCharacteristicMac *, const long &>' requested here
+    return InvokeHelper<is_weak_call, R>::MakeItSo(
+                                          ^
+../../3rdparty/chromium/base/bind_internal.h:339:12: note: in instantiation of function template specialization 'base::internal::Invoker<base::internal::BindState<void (device::BluetoothRemoteGattCharacteristicMac::*)(NSError *), base::internal::UnretainedWrapper<device::BluetoothRemoteGattCharacteristicMac>, long>, void ()>::RunImpl<void (device::BluetoothRemoteGattCharacteristicMac::*const &)(NSError *), const std::__1::tuple<base::internal::UnretainedWrapper<device::BluetoothRemoteGattCharacteristicMac>, long> &, 0, 1>' requested here
+    return RunImpl(storage->functor_,
+           ^
+../../3rdparty/chromium/base/bind.h:62:45: note: in instantiation of member function 'base::internal::Invoker<base::internal::BindState<void (device::BluetoothRemoteGattCharacteristicMac::*)(NSError *), base::internal::UnretainedWrapper<device::BluetoothRemoteGattCharacteristicMac>, long>, void ()>::Run' requested here
+  PolymorphicInvoke invoke_func = &Invoker::Run;
+                                            ^
+../../3rdparty/chromium/base/bind.h:77:10: note: in instantiation of function template specialization 'base::BindRepeating<void (device::BluetoothRemoteGattCharacteristicMac::*)(NSError *), base::internal::UnretainedWrapper<device::BluetoothRemoteGattCharacteristicMac>, long>' requested here
+  return BindRepeating(std::forward<Functor>(functor),
+         ^
+../../3rdparty/chromium/device/bluetooth/bluetooth_remote_gatt_characteristic_mac.mm:241:15: note: in instantiation of function template specialization 'base::Bind<void (device::BluetoothRemoteGattCharacteristicMac::*)(NSError *), base::internal::UnretainedWrapper<device::BluetoothRemoteGattCharacteristicMac>, long>' requested here
+        base::Bind(&BluetoothRemoteGattCharacteristicMac::DidWriteValue,
+
+--- a/src/3rdparty/chromium/device/bluetooth/bluetooth_remote_gatt_characteristic_mac.mm
++++ b/src/3rdparty/chromium/device/bluetooth/bluetooth_remote_gatt_characteristic_mac.mm
+@@ -239,7 +239,7 @@ void BluetoothRemoteGattCharacteristicMac::WriteRemoteCharacteristic(
+     base::ThreadTaskRunnerHandle::Get()->PostTask(
+         FROM_HERE,
+         base::Bind(&BluetoothRemoteGattCharacteristicMac::DidWriteValue,
+-                   base::Unretained(this), nil));
++                   base::Unretained(this), nullptr));
+   }
+ }
+ 
diff --git a/pkgs/development/libraries/qt-5/modules/qtwebengine.nix b/pkgs/development/libraries/qt-5/modules/qtwebengine.nix
index f1fee7da48e..91b7acf4365 100644
--- a/pkgs/development/libraries/qt-5/modules/qtwebengine.nix
+++ b/pkgs/development/libraries/qt-5/modules/qtwebengine.nix
@@ -70,6 +70,10 @@ qtModule {
       substituteInPlace src/core/config/mac_osx.pri \
         --replace /usr ${stdenv.cc}
     ''
+    + (optionalString (lib.versionAtLeast qtCompatVersion "5.11") ''
+      substituteInPlace src/3rdparty/chromium/third_party/crashpad/crashpad/util/BUILD.gn \
+        --replace '$sysroot/usr' "${darwin.xnu}"
+    '')
     + ''
 
     cat <<EOF > src/3rdparty/chromium/build/mac/find_sdk.py
@@ -90,9 +94,6 @@ print('sdk_platform_path=""')
 print('sdk_build="17B41"')
 EOF
 
-    substituteInPlace src/3rdparty/chromium/third_party/crashpad/crashpad/util/BUILD.gn \
-      --replace '$sysroot/usr' "${darwin.xnu}"
-
     # Apple has some secret stuff they don't share with OpenBSM
     substituteInPlace src/3rdparty/chromium/base/mac/mach_port_broker.mm \
       --replace "audit_token_to_pid(msg.trailer.msgh_audit)" "msg.trailer.msgh_audit.val[5]"