Index: /trunk/src/VBox/Main/Makefile.kmk
===================================================================
--- /trunk/src/VBox/Main/Makefile.kmk	(revision 42303)
+++ /trunk/src/VBox/Main/Makefile.kmk	(revision 42304)
@@ -821,5 +821,5 @@
 	$(VBOX_MAIN_IDL) $(IDL_DEFS) \
 		/out $(call VBOX_FN_MAKE_WIN_PATH,$(VBoxCOM_0_OUTDIR)) \
-		/cpp_cmd "$(strip $(subst $(EXEC_X86_WIN32),,$(call VBOX_FN_MAKE_WIN_PATH,$(TOOL_$(VBOX_VCC_TOOL)_CC))))" \
+		/cpp_cmd $(subst $(EXEC_X86_WIN32),,$(call VBOX_FN_MAKE_WIN_PATH,$(TOOL_$(VBOX_VCC_TOOL)_CC))) \
 		/I $(call VBOX_FN_MAKE_WIN_PATH,$(PATH_SDK_$(VBOX_WINPSDK)_INC)) \
 		/I idl \