1 files changed, 3 insertions, 1 deletions
diff --git a/src/armnn/backends/ClWorkloads/ClConvolution2dBaseWorkload.hpp b/src/armnn/backends/ClWorkloads/ClConvolution2dBaseWorkload.hpp
index c4ef152361..c79e476dd3 100644
--- a/src/armnn/backends/ClWorkloads/ClConvolution2dBaseWorkload.hpp
+++ b/src/armnn/backends/ClWorkloads/ClConvolution2dBaseWorkload.hpp
@@ -7,6 +7,8 @@
 
 #include "backends/ClWorkloadUtils.hpp"
 
+#include <boost/optional.hpp>
+
 namespace armnn
 {
 
@@ -14,6 +16,6 @@ arm_compute::Status ClConvolution2dWorkloadValidate(const TensorInfo& input,
     const TensorInfo& output,
     const Convolution2dDescriptor& descriptor,
     const TensorInfo& weights,
-    const TensorInfo& biases);
+    const boost::optional<TensorInfo>& biases);
 
 } //namespace armnn