diff --git a/src/nvapi/nvapi_vulkan_low_latency_device.cpp b/src/nvapi/nvapi_vulkan_low_latency_device.cpp
index c348781d..bbb41c1f 100644
--- a/src/nvapi/nvapi_vulkan_low_latency_device.cpp
+++ b/src/nvapi/nvapi_vulkan_low_latency_device.cpp
@@ -1,6 +1,9 @@
 #include "./nvapi_vulkan_low_latency_device.h"
 
 namespace dxvk {
+    std::unordered_map<VkDevice, NvapiVulkanLowLatencyDevice> NvapiVulkanLowLatencyDevice::m_lowLatencyDeviceMap = {};
+    std::mutex NvapiVulkanLowLatencyDevice::m_lowLatencyDeviceMutex = {};
+
     std::pair<NvapiVulkanLowLatencyDevice*, VkResult> NvapiVulkanLowLatencyDevice::GetOrCreate(VkDevice device, PFN_vkGetDeviceProcAddr pvkGetDeviceProcAddr) {
         std::scoped_lock lock{m_lowLatencyDeviceMutex};
 
diff --git a/src/nvapi/nvapi_vulkan_low_latency_device.h b/src/nvapi/nvapi_vulkan_low_latency_device.h
index 0b64f7f4..5197a4a0 100644
--- a/src/nvapi/nvapi_vulkan_low_latency_device.h
+++ b/src/nvapi/nvapi_vulkan_low_latency_device.h
@@ -35,8 +35,8 @@ namespace dxvk {
         void QueueNotifyOutOfBand(VkQueue queue, VkOutOfBandQueueTypeNV queueType);
 
       private:
-        inline static std::unordered_map<VkDevice, NvapiVulkanLowLatencyDevice> m_lowLatencyDeviceMap{};
-        inline static std::mutex m_lowLatencyDeviceMutex{};
+        static std::unordered_map<VkDevice, NvapiVulkanLowLatencyDevice> m_lowLatencyDeviceMap;
+        static std::mutex m_lowLatencyDeviceMutex;
 
         VkDevice m_device{};
         VkSemaphore m_semaphore{};