diff --git a/esphome/components/copy/lock/copy_lock.cpp b/esphome/components/copy/lock/copy_lock.cpp
index 652da1918b7..c846954510f 100644
--- a/esphome/components/copy/lock/copy_lock.cpp
+++ b/esphome/components/copy/lock/copy_lock.cpp
@@ -7,7 +7,7 @@ namespace copy {
 static const char *const TAG = "copy.lock";
 
 void CopyLock::setup() {
-  source_->add_on_state_callback([this](LockState state) { this->publish_state(state); });
+  source_->add_on_state_callback([this](lock::LockState state) { this->publish_state(state); });
 
   traits.set_assumed_state(source_->traits.get_assumed_state());
   traits.set_requires_code(source_->traits.get_requires_code());