diff --git a/src/ipa/raspberrypi/controller/controller.cpp b/src/ipa/raspberrypi/controller/controller.cpp
index bbd382bce..f48927866 100644
--- a/src/ipa/raspberrypi/controller/controller.cpp
+++ b/src/ipa/raspberrypi/controller/controller.cpp
@@ -25,13 +25,6 @@ Controller::Controller()
 {
 }
 
-Controller::Controller(char const *jsonFilename)
-	: switchModeCalled_(false)
-{
-	read(jsonFilename);
-	initialise();
-}
-
 Controller::~Controller() {}
 
 int Controller::read(char const *filename)
diff --git a/src/ipa/raspberrypi/controller/controller.h b/src/ipa/raspberrypi/controller/controller.h
index 6be1e3cfa..3e1e05170 100644
--- a/src/ipa/raspberrypi/controller/controller.h
+++ b/src/ipa/raspberrypi/controller/controller.h
@@ -40,7 +40,6 @@ class Controller
 {
 public:
 	Controller();
-	Controller(char const *jsonFilename);
 	~Controller();
 	int read(char const *filename);
 	void initialise();