diff --git a/tests/d3d12.c b/tests/d3d12.c
index 28edc54d..7255c7fd 100644
--- a/tests/d3d12.c
+++ b/tests/d3d12.c
@@ -28,6 +28,7 @@
 static PFN_D3D12_CREATE_VERSIONED_ROOT_SIGNATURE_DESERIALIZER pfn_D3D12CreateVersionedRootSignatureDeserializer;
 static PFN_D3D12_SERIALIZE_VERSIONED_ROOT_SIGNATURE pfn_D3D12SerializeVersionedRootSignature;
 PFN_D3D12_CREATE_DEVICE pfn_D3D12CreateDevice;
+PFN_D3D12_ENABLE_EXPERIMENTAL_FEATURES pfn_D3D12EnableExperimentalFeatures;
 PFN_D3D12_GET_DEBUG_INTERFACE pfn_D3D12GetDebugInterface;
 
 struct vec2
@@ -49715,6 +49716,7 @@ static void test_root_signature_priority(void)
 START_TEST(d3d12)
 {
     pfn_D3D12CreateDevice = get_d3d12_pfn(D3D12CreateDevice);
+    pfn_D3D12EnableExperimentalFeatures = get_d3d12_pfn(D3D12EnableExperimentalFeatures);
     pfn_D3D12GetDebugInterface = get_d3d12_pfn(D3D12GetDebugInterface);
 
     parse_args(argc, argv);
diff --git a/tests/d3d12_crosstest.h b/tests/d3d12_crosstest.h
index 959c0419..269b3cb5 100644
--- a/tests/d3d12_crosstest.h
+++ b/tests/d3d12_crosstest.h
@@ -51,6 +51,7 @@
 #include "d3d12_test_utils.h"
 
 extern PFN_D3D12_CREATE_DEVICE pfn_D3D12CreateDevice;
+extern PFN_D3D12_ENABLE_EXPERIMENTAL_FEATURES pfn_D3D12EnableExperimentalFeatures;
 extern PFN_D3D12_GET_DEBUG_INTERFACE pfn_D3D12GetDebugInterface;
 
 #if defined(_WIN32) && !defined(VKD3D_FORCE_UTILS_WRAPPER)
@@ -296,6 +297,10 @@ static ID3D12Device *create_device(void)
         return NULL;
     }
 
+    /* Enable support for 6_3+, we need this for some tests. */
+    if (pfn_D3D12EnableExperimentalFeatures)
+        pfn_D3D12EnableExperimentalFeatures(1, &D3D12ExperimentalShaderModels, NULL, NULL);
+
     hr = pfn_D3D12CreateDevice(adapter, D3D_FEATURE_LEVEL_11_0, &IID_ID3D12Device, (void **)&device);
     if (adapter)
         IUnknown_Release(adapter);
diff --git a/tests/descriptor_performance.c b/tests/descriptor_performance.c
index ae2077fb..32f041c0 100644
--- a/tests/descriptor_performance.c
+++ b/tests/descriptor_performance.c
@@ -23,11 +23,13 @@
 static PFN_D3D12_CREATE_VERSIONED_ROOT_SIGNATURE_DESERIALIZER pfn_D3D12CreateVersionedRootSignatureDeserializer;
 static PFN_D3D12_SERIALIZE_VERSIONED_ROOT_SIGNATURE pfn_D3D12SerializeVersionedRootSignature;
 PFN_D3D12_CREATE_DEVICE pfn_D3D12CreateDevice;
+PFN_D3D12_ENABLE_EXPERIMENTAL_FEATURES pfn_D3D12EnableExperimentalFeatures;
 PFN_D3D12_GET_DEBUG_INTERFACE pfn_D3D12GetDebugInterface;
 
 static void setup(int argc, char **argv)
 {
     pfn_D3D12CreateDevice = get_d3d12_pfn(D3D12CreateDevice);
+    pfn_D3D12EnableExperimentalFeatures = get_d3d12_pfn(D3D12EnableExperimentalFeatures);
     pfn_D3D12GetDebugInterface = get_d3d12_pfn(D3D12GetDebugInterface);
 
     parse_args(argc, argv);