diff --git a/doc/src/plugins/backend.rst b/doc/src/plugins/backend.rst
index fdc93d9..d9ec08b 100644
--- a/doc/src/plugins/backend.rst
+++ b/doc/src/plugins/backend.rst
@@ -47,15 +47,15 @@ hatchling
 Select groups to lock
 ~~~~~~~~~~~~~~~~~~~~~
 
-By default, the default group and all optional groups will be locked, but you can specify the groups to lock by setting `lock-groups` in the configuration.
+By default, the default group and all optional groups will be locked, but you can specify the groups to lock by setting `locked-groups` in the configuration.
 
 .. code-block:: toml
     :caption: pyproject.toml
     # for pdm-backend
     [tool.pdm.build]
     locked = true
-    lock-groups = ["default", "optional1"]
+    locked-groups = ["default", "optional1"]
 
     # for hatchling
     [tool.hatch.metadata.hooks.build-locked]
-    lock-groups = ["default", "optional1"]
+    locked-groups = ["default", "optional1"]
diff --git a/src/pdm_build_locked/backend.py b/src/pdm_build_locked/backend.py
index 75fcfa9..05a3bb4 100644
--- a/src/pdm_build_locked/backend.py
+++ b/src/pdm_build_locked/backend.py
@@ -21,7 +21,7 @@ def pdm_build_hook_enabled(self, context: Context) -> bool:
     def pdm_build_initialize(self, context: Context) -> None:
         static_fields = list(context.config.metadata)
         update_metadata_with_locked(
-            context.config.metadata, context.root, context.config.build_config.get("lock-groups")
+            context.config.metadata, context.root, context.config.build_config.get("locked-groups")
         )
         new_fields = set(context.config.metadata) - set(static_fields)
         for field in new_fields:
diff --git a/src/pdm_build_locked/command.py b/src/pdm_build_locked/command.py
index 8574fc8..36c9a5a 100644
--- a/src/pdm_build_locked/command.py
+++ b/src/pdm_build_locked/command.py
@@ -50,7 +50,7 @@ def handle(self, project: Project, options: argparse.Namespace) -> None:
         if dev_dependencies := project.pyproject.settings.get("dev-dependencies"):
             pdm_dev_dependencies = dev_dependencies.keys()
 
-        groups = project.pyproject.settings.get("build", {}).get("lock-groups", None)
+        groups = project.pyproject.settings.get("build", {}).get("locked-groups", None)
         if groups is None:
             groups = {group for group in project.all_dependencies if group not in pdm_dev_dependencies}
         else:
diff --git a/src/pdm_build_locked/hatchling.py b/src/pdm_build_locked/hatchling.py
index b25b28e..60be4a5 100644
--- a/src/pdm_build_locked/hatchling.py
+++ b/src/pdm_build_locked/hatchling.py
@@ -12,7 +12,7 @@ class BuildLockedMetadataHook(MetadataHookInterface):
     PLUGIN_NAME = "build-locked"
 
     def update(self, metadata: dict) -> None:
-        update_metadata_with_locked(metadata, Path(self.root), self.config.get("lock-groups"))
+        update_metadata_with_locked(metadata, Path(self.root), self.config.get("locked-groups"))
 
 
 @hookimpl
diff --git a/tests/data/large-selected/pyproject.toml b/tests/data/large-selected/pyproject.toml
index 7858314..0f683b4 100644
--- a/tests/data/large-selected/pyproject.toml
+++ b/tests/data/large-selected/pyproject.toml
@@ -57,7 +57,7 @@ source = "scm"
 [tool.pdm.build]
 package-dir = "src"
 locked = true
-lock-groups = ["default"]
+locked-groups = ["default"]
 
 [tool.pdm.dev-dependencies]
 dev = [