diff --git a/src/core/hle/D3D8/Direct3D9/Direct3D9.cpp b/src/core/hle/D3D8/Direct3D9/Direct3D9.cpp
index 492df0e19..ce228c265 100644
--- a/src/core/hle/D3D8/Direct3D9/Direct3D9.cpp
+++ b/src/core/hle/D3D8/Direct3D9/Direct3D9.cpp
@@ -8608,6 +8608,33 @@ void WINAPI xbox::EMUPATCH(D3D_BlockOnTime)( dword_xt Unknown1, int Unknown2 )
 	LOG_UNIMPLEMENTED();
 }
 
+// LTCG specific D3D_BlockOnTime function
+// This uses a custom calling convention where parameter is passed in EAX
+// Test case: Burnout 3
+__declspec(naked) void WINAPI xbox::EMUPATCH(D3D_BlockOnTime_4)( dword_xt Unknown1 )
+{
+	int Unknown2;
+
+	// prologue
+	__asm {
+		push ebp
+		mov  ebp, esp
+		sub  esp, __LOCAL_SIZE
+		mov  Unknown2, eax // get parameter from eax
+	}
+
+	// LOG_FORWARD requires unwinding, so carry on without it
+	EMUPATCH(D3D_BlockOnTime)(Unknown1, Unknown2);
+
+	// epilogue
+	__asm {
+		mov  esp, ebp
+		pop  ebp
+		ret  4
+	}
+}
+
+
 bool DestroyResource_Common(xbox::X_D3DResource* pResource)
 {
     if (pResource == g_pXbox_RenderTarget) {
diff --git a/src/core/hle/D3D8/Direct3D9/Direct3D9.h b/src/core/hle/D3D8/Direct3D9/Direct3D9.h
index 9232494c3..b00c54d37 100644
--- a/src/core/hle/D3D8/Direct3D9/Direct3D9.h
+++ b/src/core/hle/D3D8/Direct3D9/Direct3D9.h
@@ -2068,6 +2068,12 @@ void WINAPI EMUPATCH(D3D_SetCommonDebugRegisters)();
 // ******************************************************************
 void WINAPI EMUPATCH(D3D_BlockOnTime)( dword_xt Unknown1, int Unknown2 );
 
+// ******************************************************************
+// * patch: D3D_BlockOnTime_4
+//   One of the parameters (unknown which) passed in EAX
+// ******************************************************************
+void WINAPI EMUPATCH(D3D_BlockOnTime_4)( dword_xt Unknown1 );
+
 // ******************************************************************
 // * patch: D3D_BlockOnResource
 // ******************************************************************
diff --git a/src/core/hle/Patches.cpp b/src/core/hle/Patches.cpp
index 3fef16dfa..11b43665a 100644
--- a/src/core/hle/Patches.cpp
+++ b/src/core/hle/Patches.cpp
@@ -181,6 +181,7 @@ std::map<const std::string, const xbox_patch_t> g_PatchTable = {
 	PATCH_ENTRY("D3DDevice_UpdateOverlay", xbox::EMUPATCH(D3DDevice_UpdateOverlay), PATCH_HLE_D3D),
 	PATCH_ENTRY("D3DResource_BlockUntilNotBusy", xbox::EMUPATCH(D3DResource_BlockUntilNotBusy), PATCH_HLE_D3D),
 	PATCH_ENTRY("D3D_BlockOnTime", xbox::EMUPATCH(D3D_BlockOnTime), PATCH_HLE_D3D),
+	PATCH_ENTRY("D3D_BlockOnTime_4", xbox::EMUPATCH(D3D_BlockOnTime_4), PATCH_HLE_D3D),
     PATCH_ENTRY("D3D_DestroyResource", xbox::EMUPATCH(D3D_DestroyResource), PATCH_HLE_D3D),
     PATCH_ENTRY("D3D_DestroyResource__LTCG", xbox::EMUPATCH(D3D_DestroyResource__LTCG), PATCH_HLE_D3D),
 	PATCH_ENTRY("D3D_LazySetPointParams", xbox::EMUPATCH(D3D_LazySetPointParams), PATCH_HLE_D3D),