diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7c163dc..dbb212f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -323,6 +323,7 @@
     src/armnn/layers/TransposeConvolution2dLayer.cpp
     src/armnn/layers/TransposeConvolution2dLayer.hpp
     src/armnn/BackendSettings.hpp
+    src/armnn/BackendHelper.cpp
     src/armnn/CompatibleTypes.hpp
     src/armnn/Descriptors.cpp
     src/armnn/DeviceSpec.hpp