diff --git a/Source/Core/DolphinWX/Android/ButtonManager.cpp b/Source/Core/DolphinWX/Android/ButtonManager.cpp
index 53e64513ba..b96c263df6 100644
--- a/Source/Core/DolphinWX/Android/ButtonManager.cpp
+++ b/Source/Core/DolphinWX/Android/ButtonManager.cpp
@@ -58,7 +58,7 @@ namespace ButtonManager
 		TRIGGER_R
 	};
 
-	static void AddBind(std::string dev, sBind *bind)
+	static void AddBind(const std::string& dev, sBind *bind)
 	{
 		auto it = m_controllers.find(dev);
 		if (it != m_controllers.end())
@@ -156,7 +156,7 @@ namespace ButtonManager
 		}
 		return value;
 	}
-	bool GamepadEvent(std::string dev, int button, int action)
+	bool GamepadEvent(const std::string& dev, int button, int action)
 	{
 		auto it = m_controllers.find(dev);
 		if (it != m_controllers.end())
@@ -165,7 +165,7 @@ namespace ButtonManager
 		m_controllers[dev] = new InputDevice(dev);
 		return m_controllers[dev]->PressEvent(button, action);
 	}
-	void GamepadAxisEvent(std::string dev, int axis, float value)
+	void GamepadAxisEvent(const std::string& dev, int axis, float value)
 	{
 		auto it = m_controllers.find(dev);
 		if (it != m_controllers.end())
diff --git a/Source/Core/DolphinWX/Android/ButtonManager.h b/Source/Core/DolphinWX/Android/ButtonManager.h
index fbb3ab1e2c..7a68df1ffd 100644
--- a/Source/Core/DolphinWX/Android/ButtonManager.h
+++ b/Source/Core/DolphinWX/Android/ButtonManager.h
@@ -108,7 +108,7 @@ namespace ButtonManager
 	void Init();
 	bool GetButtonPressed(int padID, ButtonType button);
 	float GetAxisValue(int padID, ButtonType axis);
-	bool GamepadEvent(std::string dev, int button, int action);
-	void GamepadAxisEvent(std::string dev, int axis, float value);
+	bool GamepadEvent(const std::string& dev, int button, int action);
+	void GamepadAxisEvent(const std::string& dev, int axis, float value);
 	void Shutdown();
 }