diff --git a/scripts/basop_create_ignorelist_for_ubsan.py b/scripts/basop_create_ignorelist_for_ubsan.py
index e6dfdfa0752daf92b00577538931afe44636352b..d13c0d5f5b7054ed73e37fa1aa8339153bc77590 100644
--- a/scripts/basop_create_ignorelist_for_ubsan.py
+++ b/scripts/basop_create_ignorelist_for_ubsan.py
@@ -1,9 +1,14 @@
 import pathlib
 
-all_c_files = pathlib.Path(".").glob("lib_*/*.[ch]")
-ivas_c_files = pathlib.Path(".").glob("lib_*/ivas*.[ch]")
-non_ivas_c_files = sorted(set(all_c_files) - set(ivas_c_files))
+here = pathlib.Path(".")
+
+all_files = here.glob("lib_*/*.[ch]")
+ivas_files = here.glob("lib_*/ivas*.[ch]")
+non_ivas_files = sorted(set(all_files) - set(ivas_files))
+basop_files = here.glob("lib_*/basop*.[ch]")
+
+ignorefiles = sorted(set(non_ivas_files) - set(basop_files))
 
 with open("ubsan_ignorelist.txt", "w") as f:
-    for cfile in non_ivas_c_files:
+    for cfile in ignorefiles:
         print(f"src:{cfile}", file=f)