diff --git a/src/core/CL/kernels/CLMagnitudePhaseKernel.cpp b/src/core/CL/kernels/CLMagnitudePhaseKernel.cpp
index 0b34c59..934e2d6 100644
--- a/src/core/CL/kernels/CLMagnitudePhaseKernel.cpp
+++ b/src/core/CL/kernels/CLMagnitudePhaseKernel.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2018 ARM Limited.
+ * Copyright (c) 2016-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -116,7 +116,8 @@
     build_opts.insert("-DDATA_TYPE=" + get_cl_type_from_data_type(gx->info()->data_type()));
 
     // Create kernel
-    _kernel = static_cast<cl::Kernel>(CLKernelLibrary::get().create_kernel("magnitude_phase", build_opts));
+    const std::string kernel_name = std::string("magnitude_phase");
+    _kernel                       = static_cast<cl::Kernel>(CLKernelLibrary::get().create_kernel(kernel_name, build_opts));
 
     // Configure kernel window
     constexpr unsigned int num_elems_processed_per_iteration = 16;
@@ -138,6 +139,15 @@
     output_phase_access.set_valid_region(win, valid_region);
 
     ICLKernel::configure_internal(win);
+
+    // Set config_id for enabling LWS tuning
+    _config_id = kernel_name;
+    _config_id += "_";
+    _config_id += lower_string(string_from_data_type(gx->info()->data_type()));
+    _config_id += "_";
+    _config_id += support::cpp11::to_string(gx->info()->dimension(0));
+    _config_id += "_";
+    _config_id += support::cpp11::to_string(gx->info()->dimension(1));
 }
 
 void CLMagnitudePhaseKernel::run(const Window &window, cl::CommandQueue &queue)