diff --git a/xc7_bram.v b/xc7_bram.v
index e73ca98..dceab19 100644
--- a/xc7_bram.v
+++ b/xc7_bram.v
@@ -10,7 +10,7 @@ module xc7_bram #(
 	input  [23:0] in_addr,
 	input   [1:0] in_wren,
 );
-	wire [31:0] porta_out [NUM_BLOCKS-1:0];
+	wire [31:0] porta_out [0:NUM_BLOCKS-1];
 	wire [15:0] porta_addr, portb_addr;
 
 	assign out_data = porta_out[out_addr[16:11]][15:0];
@@ -30,6 +30,8 @@ module xc7_bram #(
 				.ADDRARDADDR(porta_addr),
 				.CLKARDCLK  (out_clk),
 				.ENARDEN    (1'b1),
+				.DIADI      (32'b0),
+				.WEA        (4'b0),
 				.ADDRBWRADDR(portb_addr),
 				.CLKBWRCLK  (in_clk),
 				.ENBWREN    (in_addr[16:11] == i),