diff --git a/Android.mk b/Android.mk
index 62a992d..0e0fa9c 100644
--- a/Android.mk
+++ b/Android.mk
@@ -92,6 +92,7 @@
         src/armnn/layers/ConvertFp32ToFp16Layer.cpp \
         src/armnn/layers/DebugLayer.cpp \
         src/armnn/layers/DepthwiseConvolution2dLayer.cpp \
+        src/armnn/layers/DetectionPostProcessLayer.cpp \
         src/armnn/layers/DivisionLayer.cpp \
         src/armnn/layers/ElementwiseBaseLayer.cpp \
         src/armnn/layers/EqualLayer.cpp \