diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3cfebcb..7c934c8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+# 1.4.1
+- fix copy_and_hack_decorator (was not returning the decorated function output)
+
 # 1.4.0
 - count_occurences / replace_value: add copy_and_hack decorator to run on tscan output files
 - Update to pdal 2.6+ to better handle classification values and flags in replace_attribute_in_las
diff --git a/pdaltools/_version.py b/pdaltools/_version.py
index 58bca5c..8e8657e 100644
--- a/pdaltools/_version.py
+++ b/pdaltools/_version.py
@@ -1,4 +1,4 @@
-__version__ = "1.4.0"
+__version__ = "1.4.1"
 
 
 if __name__ == "__main__":
diff --git a/pdaltools/unlock_file.py b/pdaltools/unlock_file.py
index ac9c1d1..d42f658 100644
--- a/pdaltools/unlock_file.py
+++ b/pdaltools/unlock_file.py
@@ -43,7 +43,8 @@ def newfn(*args, **kwargs):
                 with tempfile.NamedTemporaryFile(suffix=os.path.splitext(in_file)[-1]) as tmp:
                     copy_and_hack_input_file(in_file, tmp.name)
                     args[0] = tmp.name
-                    func(*args, **kwargs)
+
+                    return func(*args, **kwargs)
 
             else:
                 raise e
diff --git a/test/test_unlock.py b/test/test_unlock.py
index 5fb53c2..742b69c 100644
--- a/test/test_unlock.py
+++ b/test/test_unlock.py
@@ -28,7 +28,8 @@ def decorated_pdal_info_json(input_file: str):
 def test_copy_and_hack_decorator_simple():
     TMP_FILE = os.path.join(TMPDIR, "copy_and_hack_simple.laz")
     shutil.copy(LAZ_FILE, TMP_FILE)
-    decorated_pdal_info_json(TMP_FILE)
+    ret = decorated_pdal_info_json(TMP_FILE)
+    assert ret  # Check that the return value of the decorated function is returned
 
 
 @pytest.mark.geoportail