diff --git a/api/include/opentelemetry/common/spin_lock_mutex.h b/api/include/opentelemetry/common/spin_lock_mutex.h
index ac52f700bc..8cec8dfea3 100644
--- a/api/include/opentelemetry/common/spin_lock_mutex.h
+++ b/api/include/opentelemetry/common/spin_lock_mutex.h
@@ -56,7 +56,6 @@ class SpinLockMutex
   ~SpinLockMutex() noexcept            = default;
   SpinLockMutex(const SpinLockMutex &) = delete;
   SpinLockMutex &operator=(const SpinLockMutex &) = delete;
-  SpinLockMutex &operator=(const SpinLockMutex &) volatile = delete;
 
   static inline void fast_yield() noexcept
   {