diff --git a/Android.mk b/Android.mk
index db3c6b3..c070b28 100644
--- a/Android.mk
+++ b/Android.mk
@@ -113,6 +113,7 @@
         src/armnn/backends/NeonWorkloads/NeonSoftmaxUint8Workload.cpp \
         src/armnn/backends/NeonWorkloads/NeonSplitterFloatWorkload.cpp \
         src/armnn/backends/NeonWorkloads/NeonSplitterUint8Workload.cpp \
+        src/armnn/backends/NeonWorkloads/NeonSubtractionFloatWorkload.cpp \
         src/armnn/backends/ClWorkloadFactory.cpp \
         src/armnn/backends/ClContextControl.cpp \
         src/armnn/backends/CpuTensorHandle.cpp \