diff --git a/qkeras/qtools/DnC/divide_and_conquer.py b/qkeras/qtools/DnC/divide_and_conquer.py
index f92db071..710589d1 100644
--- a/qkeras/qtools/DnC/divide_and_conquer.py
+++ b/qkeras/qtools/DnC/divide_and_conquer.py
@@ -274,7 +274,7 @@ def get_per_layer_cost(layer_quantizer_bitwidth, layer_mac_count, layer_shapes,
       dnc_layer_cost_ace.MemoryGatesPerBit["Register"] +
       OutElementPerClk * layer_quantizer_bitwidth["output_bits"] *
       dnc_layer_cost_ace.MemoryGatesPerBit["Register"] +
-      np.product(layer_shapes["weight_shape"]) *
+      np.prod(layer_shapes["weight_shape"]) *
       layer_quantizer_bitwidth["weight_bits"] *
       dnc_layer_cost_ace.MemoryGatesPerBit["ROM"])