diff --git a/tests/validation/CPP/DepthwiseConvolution.cpp b/tests/validation/CPP/DepthwiseConvolution.cpp
index b57c268..e29d014 100644
--- a/tests/validation/CPP/DepthwiseConvolution.cpp
+++ b/tests/validation/CPP/DepthwiseConvolution.cpp
@@ -45,7 +45,7 @@
  *
  */
 template <typename T>
-SimpleTensor<T> depthwise_convolution(const SimpleTensor<T> &src, const SimpleTensor<T> &weights, const TensorShape &dst_shape, const PadStrideInfo &conv_info)
+SimpleTensor<T> depthwise_convolution(const SimpleTensor<T> &src, const SimpleTensor<T> &weights, const SimpleTensor<T> &biases, const TensorShape &dst_shape, const PadStrideInfo &conv_info)
 {
     // Create reference
     SimpleTensor<T> dst{ dst_shape, src.data_type(), 1, src.fixed_point_position() };
@@ -97,7 +97,7 @@
                     }
                     coords.set(0, x);
                     coords.set(1, y);
-                    dst[out_pos++] = saturate_cast<T>(val);
+                    dst[out_pos++] = saturate_cast<T>(val + *static_cast<const T *>(biases(Coordinates(z))));
                 }
             }
         }
@@ -106,7 +106,8 @@
     return dst;
 }
 
-template SimpleTensor<float> depthwise_convolution(const SimpleTensor<float> &src, const SimpleTensor<float> &weights, const TensorShape &dst_shape, const PadStrideInfo &conv_info);
+template SimpleTensor<float> depthwise_convolution(const SimpleTensor<float> &src, const SimpleTensor<float> &weights, const SimpleTensor<float> &biases, const TensorShape &dst_shape,
+                                                   const PadStrideInfo &conv_info);
 } // namespace reference
 } // namespace validation
 } // namespace test