diff --git a/xc7_bram.v b/xc7_bram.v
index 0c1b749..e73ca98 100644
--- a/xc7_bram.v
+++ b/xc7_bram.v
@@ -15,8 +15,8 @@ module xc7_bram #(
 
 	assign out_data = porta_out[out_addr[16:11]][15:0];
 
-	assign porta_addr = {1'b1, out_addr[10:0], 4'b1};
-	assign portb_addr = {1'b1, in_addr[10:0], 4'b1};
+	assign porta_addr = {1'b1, out_addr[10:0], 4'b1111};
+	assign portb_addr = {1'b1, in_addr[10:0], 4'b1111};
 
 	genvar i;