diff --git a/library/axi_generic_adc/axi_generic_adc.v b/library/axi_generic_adc/axi_generic_adc.v
index 3936484e3..4533d3e2a 100644
--- a/library/axi_generic_adc/axi_generic_adc.v
+++ b/library/axi_generic_adc/axi_generic_adc.v
@@ -150,7 +150,7 @@ up_adc_common #(.ID(ID)) i_up_adc_common (
   .up_drp_ready (1'd0),
   .up_drp_locked (1'd1),
   .up_usr_chanmax_out (),
-  .up_usr_chanmax_in (8'd0),
+  .up_usr_chanmax_in (NUM_OF_CHANNELS),
   .up_adc_gpio_in (32'b0),
   .up_adc_gpio_out (),
   .up_rstn (up_rstn),