diff --git a/src/SPILock.cpp b/src/SPILock.cpp
index 9bb027ae8..13fa556fc 100644
--- a/src/SPILock.cpp
+++ b/src/SPILock.cpp
@@ -1,57 +1,12 @@
 #include "SPILock.h"
-#include "PowerFSM.h"
 #include "configuration.h"
-#include "sleep.h"
 #include <Arduino.h>
 #include <assert.h>
 
 concurrency::Lock *spiLock;
 
-class SPILock : public concurrency::Lock
-{
-  public:
-    SPILock();
-    ~SPILock();
-
-    void lock() override;
-    void unlock() override;
-
-  private:
-    bool locked;
-
-    int preflightSleepCb(void *unused = NULL) { return locked ? 1 : 0; }
-
-    CallbackObserver<SPILock, void *> preflightSleepObserver =
-        CallbackObserver<SPILock, void *>(this, &SPILock::preflightSleepCb);
-};
-
-SPILock::SPILock() : Lock()
-{
-    locked = false;
-    preflightSleepObserver.observe(&preflightSleep);
-}
-
-SPILock::~SPILock()
-{
-    preflightSleepObserver.unobserve(&preflightSleep);
-}
-
-void SPILock::lock()
-{
-    powerFSM.trigger(EVENT_WAKE_TIMER);
-
-    Lock::lock();
-    locked = true;
-}
-
-void SPILock::unlock()
-{
-    locked = false;
-    Lock::unlock();
-}
-
 void initSPI()
 {
     assert(!spiLock);
-    spiLock = new SPILock();
+    spiLock = new concurrency::Lock();
 }
\ No newline at end of file