arm_compute v17.12
diff --git a/src/runtime/NEON/functions/NEArithmeticSubtraction.cpp b/src/runtime/NEON/functions/NEArithmeticSubtraction.cpp
index 37586af..5c0491e 100644
--- a/src/runtime/NEON/functions/NEArithmeticSubtraction.cpp
+++ b/src/runtime/NEON/functions/NEArithmeticSubtraction.cpp
@@ -36,3 +36,7 @@
     k->configure(input1, input2, output, policy);
     _kernel = std::move(k);
 }
+Status NEArithmeticSubtraction::validate(const ITensorInfo *input1, const ITensorInfo *input2, const ITensorInfo *output, ConvertPolicy policy)
+{
+    return NEArithmeticSubtractionKernel::validate(input1, input2, output, policy);
+}