diff --git a/tests/split_rendering/utils.py b/tests/split_rendering/utils.py
index 89f8aa237062e74a003d5ca5bf3519d0deb9ba78..f2125bcc909b528b355d26f5063dca8b3aa9da9c 100644
--- a/tests/split_rendering/utils.py
+++ b/tests/split_rendering/utils.py
@@ -357,7 +357,6 @@ def run_external_split_rendering(
     plc_error_pattern: Path = None,
     renderer_fmt: str = "BINAURAL_SPLIT_CODED",
     binary_suffix: str = "",
-    is_comparetest: bool = False,
     post_rend_fr: str = "20",
     pre_rend_fr: str = "20",
     get_mld=False,
@@ -411,7 +410,8 @@ def run_external_split_rendering(
             split_pre_cmd[0] += BIN_SUFFIX_MERGETARGET
         split_pre_cmd[0] += binary_suffix
         split_pre_cmd[4] = str(render_config)
-        if is_comparetest:
+        # if in REF or CUT creation mode use the comparetestv
+        if test_info.config.option.create_ref or test_info.config.option.create_cut:
             in_file = FORMAT_TO_FILE_COMPARETEST[in_fmt]
             truncate_signal(in_file, cut_in_file)