diff --git a/src/VBox/Additions/x11/vboxvideo/Makefile.kmk b/src/VBox/Additions/x11/vboxvideo/Makefile.kmk
index 6f98670d..0a7b7e01 100644
--- a/src/VBox/Additions/x11/vboxvideo/Makefile.kmk
+++ b/src/VBox/Additions/x11/vboxvideo/Makefile.kmk
@@ -406,7 +406,7 @@ vboxvideo_drv_118_LIBS += $(vboxvideo_drv_70_LIBS)
 
 ifdef VBOX_USE_SYSTEM_XORG_HEADERS
  # Build using local X.Org headers.  We assume X.Org Server 1.7 or later.
- DLLS    := $(filter-out vboxvideo_drv_%,$(DLLS)) vboxvideo_drv_system
+ DLLS    := $(filter-out vboxvideo_drv_%,$(DLLS))
  SYSMODS := $(filter-out vboxvideo_drv%,$(SYSMODS))
  vboxvideo_drv_system_TEMPLATE = VBoxGuestR3XOrgMod
  vboxvideo_drv_system_CFLAGS := \