diff --git a/src/core/NEON/kernels/NEThresholdKernel.cpp b/src/core/NEON/kernels/NEThresholdKernel.cpp
index ae9c62b..5c3b2a7 100644
--- a/src/core/NEON/kernels/NEThresholdKernel.cpp
+++ b/src/core/NEON/kernels/NEThresholdKernel.cpp
@@ -30,12 +30,9 @@
 
 #include <arm_neon.h>
 
-using namespace arm_compute;
-
 namespace arm_compute
 {
 class Coordinates;
-} // namespace arm_compute
 
 NEThresholdKernel::NEThresholdKernel()
     : _func(nullptr), _input(nullptr), _output(nullptr), _threshold(0), _false_value(0), _true_value(0), _upper(0)
@@ -67,7 +64,7 @@
             break;
     }
 
-    const unsigned int num_elems_processed_per_iteration = 16;
+    constexpr unsigned int num_elems_processed_per_iteration = 16;
 
     Window                 win = calculate_max_window(*input->info(), Steps(num_elems_processed_per_iteration));
     AccessWindowHorizontal output_access(output->info(), 0, num_elems_processed_per_iteration);
@@ -128,3 +125,4 @@
 
     (this->*_func)(window);
 }
+} // namespace arm_compute