diff --git a/include/D3D12MemAlloc.h b/include/D3D12MemAlloc.h
index 24e1698..a8a63d5 100644
--- a/include/D3D12MemAlloc.h
+++ b/include/D3D12MemAlloc.h
@@ -145,7 +145,7 @@ public:
 protected:
     virtual void ReleaseThis() { delete this; }
 private:
-    D3D12MA_ATOMIC_UINT32 m_RefCount = 1;
+    D3D12MA_ATOMIC_UINT32 m_RefCount = {1};
 };
 } // namespace D3D12MA
 
diff --git a/src/D3D12MemAlloc.cpp b/src/D3D12MemAlloc.cpp
index 097e859..060de01 100644
--- a/src/D3D12MemAlloc.cpp
+++ b/src/D3D12MemAlloc.cpp
@@ -6120,7 +6120,7 @@ private:
     D3D12MA_ATOMIC_UINT64 m_BlockBytes[DXGI_MEMORY_SEGMENT_GROUP_COUNT] = {};
     D3D12MA_ATOMIC_UINT64 m_AllocationBytes[DXGI_MEMORY_SEGMENT_GROUP_COUNT] = {};
 
-    D3D12MA_ATOMIC_UINT32 m_OperationsSinceBudgetFetch = 0;
+    D3D12MA_ATOMIC_UINT32 m_OperationsSinceBudgetFetch = {0};
     D3D12MA_RW_MUTEX m_BudgetMutex;
     UINT64 m_D3D12Usage[DXGI_MEMORY_SEGMENT_GROUP_COUNT] = {};
     UINT64 m_D3D12Budget[DXGI_MEMORY_SEGMENT_GROUP_COUNT] = {};
@@ -6355,7 +6355,7 @@ class AllocatorPimpl
     friend class Allocator;
     friend class Pool;
 public:
-    std::atomic_uint32_t m_RefCount = 1;
+    std::atomic_uint32_t m_RefCount = {1};
     CurrentBudgetData m_Budget;
 
     AllocatorPimpl(const ALLOCATION_CALLBACKS& allocationCallbacks, const ALLOCATOR_DESC& desc);