diff --git a/tests/lib/cpuifs/avalon/avalon_mm_intf_driver.sv b/tests/lib/cpuifs/avalon/avalon_mm_intf_driver.sv
index 2c5480a..173be6a 100644
--- a/tests/lib/cpuifs/avalon/avalon_mm_intf_driver.sv
+++ b/tests/lib/cpuifs/avalon/avalon_mm_intf_driver.sv
@@ -6,12 +6,12 @@ interface avalon_mm_intf_driver #(
         input wire rst,
         avalon_mm_intf.host avalon
     );
-    localparam ADDR_PAD = $clog2(DATA_WIDTH/8);
-    localparam WORD_ADDR_WIDTH = ADDR_WIDTH - ADDR_PAD;
-
     timeunit 1ps;
     timeprecision 1ps;
 
+    localparam ADDR_PAD = $clog2(DATA_WIDTH/8);
+    localparam WORD_ADDR_WIDTH = ADDR_WIDTH - ADDR_PAD;
+
     logic av_read;
     logic av_write;
     logic av_waitrequest;