diff --git a/dargs/cli.py b/dargs/cli.py
index 3273463..4559b43 100644
--- a/dargs/cli.py
+++ b/dargs/cli.py
@@ -98,6 +98,7 @@ def check_cli(
     func: str,
     jdata: list[IO],
     strict: bool,
+    trim_pattern: str = "_*",
     allow_ref: bool = False,
     **kwargs: Any,
 ) -> None:
@@ -111,6 +112,8 @@ def check_cli(
         File object that contains the JSON data
     strict : bool
         If True, raise an error if the key is not pre-defined
+    trim_pattern : str, optional
+        Glob pattern for keys removed before strict validation.
     allow_ref : bool, optional
         If True, allow loading from external files via the ``$ref`` key
 
@@ -133,7 +136,13 @@ def check_cli(
     arginfo = func_obj()
     for jj in jdata:
         data = json.load(jj)
-        check(arginfo, data, strict=strict, allow_ref=allow_ref)
+        check(
+            arginfo,
+            data,
+            strict=strict,
+            trim_pattern=trim_pattern,
+            allow_ref=allow_ref,
+        )
 
 
 def doc_cli(
diff --git a/tests/test_cli.py b/tests/test_cli.py
index 25ec787..e9755ac 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -1,5 +1,7 @@
 from __future__ import annotations
 
+import io
+import json
 import subprocess
 import sys
 import unittest
@@ -9,6 +11,18 @@
 
 
 class TestCli(unittest.TestCase):
+    def test_check_trim_pattern(self) -> None:
+        """The CLI forwards its custom trim pattern to the checker."""
+        from dargs.cli import check_cli
+
+        data = {"test1": 1, "test2": 2, "dropme": "trimmed"}
+        check_cli(
+            func="dargs._test.test_arguments",
+            jdata=[io.StringIO(json.dumps(data))],
+            strict=True,
+            trim_pattern="drop*",
+        )
+
     def test_check(self) -> None:
         subprocess.check_call(
             [