diff --git a/test/mod/test_util_mnt.py b/test/mod/test_util_mnt.py
index 51038774..259ac026 100644
--- a/test/mod/test_util_mnt.py
+++ b/test/mod/test_util_mnt.py
@@ -57,4 +57,4 @@ def test_osbuild_mount_failure_msg(tmp_path):
             "options": [],
         }
         mnt_service.mount(args)
-    assert "special device /dev/invalid-src does not exist" in str(e.value)
+    assert re.search(r"special device /dev/invalid-src does not exist|Can't open blockdev.", str(e.value))