diff --git a/win32ss/reactx/dxgthk/dxgthk.spec b/win32ss/reactx/dxgthk/dxgthk.spec
index 481520bcd85..dabba56291f 100644
--- a/win32ss/reactx/dxgthk/dxgthk.spec
+++ b/win32ss/reactx/dxgthk/dxgthk.spec
@@ -1,3 +1,4 @@
+@ stdcall DriverEntry(ptr ptr)
 @ stdcall EngAcquireSemaphore(ptr) win32k.EngAcquireSemaphore
 @ stdcall EngAllocMem(long long long) win32k.EngAllocMem
 @ stdcall EngAllocUserMem(long long) win32k.EngAllocUserMem