diff --git a/include/mimalloc-atomic.h b/include/mimalloc-atomic.h
index 9549cbc3..8b254d3e 100644
--- a/include/mimalloc-atomic.h
+++ b/include/mimalloc-atomic.h
@@ -114,9 +114,6 @@ static inline void* mi_atomic_exchange_ptr(volatile _Atomic(void*)* p, void* exc
   return (void*)mi_atomic_exchange((volatile _Atomic(uintptr_t)*)p, (uintptr_t)exchange);
 }
 
-static inline intptr_t mi_atomic_iread(volatile intptr_t* p) {
-  return (intptr_t)mi_atomic_read( (volatile uintptr_t*)p );
-}
 
 #ifdef _MSC_VER
 #define WIN32_LEAN_AND_MEAN