diff --git a/include/openspace/engine/openspaceengine.h b/include/openspace/engine/openspaceengine.h
index 42c4245eea..0bf56f5948 100644
--- a/include/openspace/engine/openspaceengine.h
+++ b/include/openspace/engine/openspaceengine.h
@@ -79,7 +79,6 @@ public:
     void mouseButtonCallback(MouseButton button, MouseAction action);
     void mousePositionCallback(double x, double y);
     void mouseScrollWheelCallback(double posX, double posY);
-    void externalControlCallback(const char* receivedChars, int size, int clientId);
     void encode();
     void decode();
 
diff --git a/src/engine/openspaceengine.cpp b/src/engine/openspaceengine.cpp
index dbd99f0c21..8b58b0a9a8 100644
--- a/src/engine/openspaceengine.cpp
+++ b/src/engine/openspaceengine.cpp
@@ -1239,18 +1239,6 @@ void OpenSpaceEngine::decode() {
     global::syncEngine.decodeSyncables();
 }
 
-void OpenSpaceEngine::externalControlCallback(const char* receivedChars, int size,
-                                              int /*clientId*/)
-{
-    // Not currently used anymore;  should be replaced with a non-SGCT relient socket
-
-    if (size == 0) {
-        return;
-    }
-
-    global::networkEngine.handleMessage(std::string(receivedChars, size));
-}
-
 void OpenSpaceEngine::toggleShutdownMode() {
     if (_shutdown.inShutdown) {
         // If we are already in shutdown mode, we want to disable it