diff --git a/scripts/basop_create_ignorelist_for_ubsan.py b/scripts/basop_create_ignorelist_for_ubsan.py
index d13c0d5f5b7054ed73e37fa1aa8339153bc77590..d34efff36347955a2f2e2c9a453eea7427cd746d 100644
--- a/scripts/basop_create_ignorelist_for_ubsan.py
+++ b/scripts/basop_create_ignorelist_for_ubsan.py
@@ -9,6 +9,10 @@ basop_files = here.glob("lib_*/basop*.[ch]")
 
 ignorefiles = sorted(set(non_ivas_files) - set(basop_files))
 
+ignorefunctions = ["L_add_o", "L_add_co", "L_sub_o", "shl_o", "L_deposit_h"]
+
 with open("ubsan_ignorelist.txt", "w") as f:
     for cfile in ignorefiles:
         print(f"src:{cfile}", file=f)
+    for fun in ignorefunctions:
+        print(f"fun:*{fun}*", file=f)