diff --git a/reactos/lib/d3d8thk/d3d8thk.def b/reactos/lib/d3d8thk/d3d8thk.def
index 881f50694d5..48945470a59 100644
--- a/reactos/lib/d3d8thk/d3d8thk.def
+++ b/reactos/lib/d3d8thk/d3d8thk.def
@@ -2,7 +2,7 @@ LIBRARY d3d8thk
 EXPORTS
 	OsThunkD3dContextCreate@16 = NtGdiD3dContextCreate@16
 	OsThunkD3dContextDestroy@4 = NtGdiD3dContextDestroy@4
-	OsThunkD3dContextDestroyAll@4 = NtGdiD3dContextDestroyAll@4
+	OsThunkD3dContextDestroyAll@0 = NtGdiD3dContextDestroyAll@0
 	OsThunkD3dDrawPrimitives2@28 = NtGdiD3dDrawPrimitives2@28
 	OsThunkD3dValidateTextureStageState@4 = NtGdiD3dValidateTextureStageState@4
 	OsThunkDdAddAttachedSurface@12 = NtGdiDdAddAttachedSurface@12
diff --git a/reactos/tools/nci/w32ksvc.db b/reactos/tools/nci/w32ksvc.db
index 85212cee508..26ffede71c3 100644
--- a/reactos/tools/nci/w32ksvc.db
+++ b/reactos/tools/nci/w32ksvc.db
@@ -571,7 +571,7 @@ NtUserManualGuiCheck                    1
 # DirectDraw system calls
 NtGdiD3dContextCreate                   4
 NtGdiD3dContextDestroy                  1
-NtGdiD3dContextDestroyAll               1
+NtGdiD3dContextDestroyAll               0
 NtGdiD3dDrawPrimitives2                 7
 NtGdiD3dValidateTextureStageState       1
 NtGdiDdAddAttachedSurface               3