diff --git a/piptools/scripts/compile.py b/piptools/scripts/compile.py
index 7c4706ee8..697c45074 100755
--- a/piptools/scripts/compile.py
+++ b/piptools/scripts/compile.py
@@ -338,10 +338,7 @@ def _determine_linesep(
         path_type=str,
     ),
     multiple=True,
-    help=(
-        "Constrain versions using the given constraints file. "
-        "This option can be used multiple times."
-    ),
+    help="Constrain versions using the given constraints file; may be used more than once.",
 )
 def cli(
     ctx: click.Context,
diff --git a/tests/test_utils.py b/tests/test_utils.py
index 7684253d8..c549a0b71 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -634,7 +634,7 @@ def test_callback_config_file_defaults(pyproject_param, new_default, make_config
         ("trusted_host", "not-a-list"),
         ("annotate", "not-a-bool"),
         ("max_rounds", "not-an-int"),
-        ("constraint", "not-an-int"),
+        ("constraint", "not-an-list"),
     ),
 )
 def test_callback_config_file_defaults_multi_validate_value(