diff --git a/src/dxvk/dxvk_adapter.cpp b/src/dxvk/dxvk_adapter.cpp
index b3bb96421..ea1423fa8 100644
--- a/src/dxvk/dxvk_adapter.cpp
+++ b/src/dxvk/dxvk_adapter.cpp
@@ -283,7 +283,7 @@ namespace dxvk {
           DxvkDeviceFeatures  enabledFeatures) {
     DxvkDeviceExtensions devExtensions;
 
-    std::array<DxvkExt*, 20> devExtensionList = {{
+    std::array<DxvkExt*, 21> devExtensionList = {{
       &devExtensions.amdMemoryOverallocationBehaviour,
       &devExtensions.amdShaderFragmentMask,
       &devExtensions.extConservativeRasterization,
@@ -300,6 +300,7 @@ namespace dxvk {
       &devExtensions.extTransformFeedback,
       &devExtensions.extVertexAttributeDivisor,
       &devExtensions.khrExternalMemoryWin32,
+      &devExtensions.khrExternalSemaphoreWin32,
       &devExtensions.khrPipelineLibrary,
       &devExtensions.khrSwapchain,
       &devExtensions.nvxBinaryImport,
diff --git a/src/dxvk/dxvk_extensions.h b/src/dxvk/dxvk_extensions.h
index cbf4ba09d..ffc7c3730 100644
--- a/src/dxvk/dxvk_extensions.h
+++ b/src/dxvk/dxvk_extensions.h
@@ -292,6 +292,7 @@ namespace dxvk {
     DxvkExt extTransformFeedback              = { VK_EXT_TRANSFORM_FEEDBACK_EXTENSION_NAME,                 DxvkExtMode::Optional };
     DxvkExt extVertexAttributeDivisor         = { VK_EXT_VERTEX_ATTRIBUTE_DIVISOR_EXTENSION_NAME,           DxvkExtMode::Optional };
     DxvkExt khrExternalMemoryWin32            = { VK_KHR_EXTERNAL_MEMORY_WIN32_EXTENSION_NAME,              DxvkExtMode::Optional };
+    DxvkExt khrExternalSemaphoreWin32         = { VK_KHR_EXTERNAL_SEMAPHORE_WIN32_EXTENSION_NAME,           DxvkExtMode::Optional };
     DxvkExt khrPipelineLibrary                = { VK_KHR_PIPELINE_LIBRARY_EXTENSION_NAME,                   DxvkExtMode::Optional };
     DxvkExt khrSwapchain                      = { VK_KHR_SWAPCHAIN_EXTENSION_NAME,                          DxvkExtMode::Required };
     DxvkExt nvxBinaryImport                   = { VK_NVX_BINARY_IMPORT_EXTENSION_NAME,                      DxvkExtMode::Disabled };
diff --git a/src/vulkan/vulkan_loader.h b/src/vulkan/vulkan_loader.h
index 094f19cc2..47c26eed8 100644
--- a/src/vulkan/vulkan_loader.h
+++ b/src/vulkan/vulkan_loader.h
@@ -379,6 +379,11 @@ namespace dxvk::vk {
     VULKAN_FN(vkGetMemoryWin32HandleKHR);
     VULKAN_FN(vkGetMemoryWin32HandlePropertiesKHR);
     #endif
+
+    #ifdef VK_KHR_external_semaphore_win32
+    VULKAN_FN(vkGetSemaphoreWin32HandleKHR);
+    VULKAN_FN(vkImportSemaphoreWin32HandleKHR);
+    #endif
   };
   
 }