diff --git a/services/inputflinger/reader/InputDevice.cpp b/services/inputflinger/reader/InputDevice.cpp
index 721bb0a..ae38236 100644
--- a/services/inputflinger/reader/InputDevice.cpp
+++ b/services/inputflinger/reader/InputDevice.cpp
@@ -456,7 +456,7 @@
 
     // Vibrator-like devices.
     if (classes.test(InputDeviceClass::VIBRATOR)) {
-        mappers.push_back(std::make_unique<VibratorInputMapper>(contextPtr, readerConfig));
+        mappers.push_back(createInputMapper<VibratorInputMapper>(contextPtr, readerConfig));
     }
 
     // Battery-like devices or light-containing devices.
diff --git a/services/inputflinger/reader/mapper/VibratorInputMapper.h b/services/inputflinger/reader/mapper/VibratorInputMapper.h
index 384c075..9079c73 100644
--- a/services/inputflinger/reader/mapper/VibratorInputMapper.h
+++ b/services/inputflinger/reader/mapper/VibratorInputMapper.h
@@ -22,8 +22,10 @@
 
 class VibratorInputMapper : public InputMapper {
 public:
-    explicit VibratorInputMapper(InputDeviceContext& deviceContext,
-                                 const InputReaderConfiguration& readerConfig);
+    template <class T, class... Args>
+    friend std::unique_ptr<T> createInputMapper(InputDeviceContext& deviceContext,
+                                                const InputReaderConfiguration& readerConfig,
+                                                Args... args);
     virtual ~VibratorInputMapper();
 
     virtual uint32_t getSources() const override;
@@ -46,6 +48,8 @@
     ssize_t mIndex;
     nsecs_t mNextStepTime;
 
+    explicit VibratorInputMapper(InputDeviceContext& deviceContext,
+                                 const InputReaderConfiguration& readerConfig);
     [[nodiscard]] std::list<NotifyArgs> nextStep();
     [[nodiscard]] NotifyVibratorStateArgs stopVibrating();
 };