diff --git a/asiclib/rename.py b/asiclib/rename.py
deleted file mode 100644
index 4fac5ae..0000000
--- a/asiclib/rename.py
+++ /dev/null
@@ -1,8 +0,0 @@
-import glob
-import re
-import os
-file_list = glob.glob('*.v')
-for item in file_list:
-    newfile = item.replace("oh_", "asic_")
-    print (item, newfile)
-    os.rename(item, newfile)
diff --git a/asiclib/scripts/rename.py b/asiclib/scripts/rename.py
new file mode 100644
index 0000000..135f5e1
--- /dev/null
+++ b/asiclib/scripts/rename.py
@@ -0,0 +1,17 @@
+import glob
+import re
+import os
+
+file_list = glob.glob('*.v')
+for item in file_list:
+    f = open(item, "r")
+    newfile = item+".tmp"
+    f2 = open(newfile, "w")
+    for line in f:
+        if re.search(r'module\s+(\w+)', line) :
+            line = line.rstrip() + " #(parameter PROP = \"DEFAULT\")"
+        f2.write(line)
+        print(line)
+    f.close()
+    f2.close()
+    os.rename(newfile, item)