diff --git a/embedding/components/build/Makefile.in b/embedding/components/build/Makefile.in
index 3501007358bc..66bb4d62f93b 100644
--- a/embedding/components/build/Makefile.in
+++ b/embedding/components/build/Makefile.in
@@ -122,7 +122,7 @@ ifeq ($(MOZ_WIDGET_TOOLKIT),os2)
 LOCAL_INCLUDES += -I$(srcdir)/../printingui/src/os2 
 endif
 
-ifneq (,$(filter gtk2 beos photon, $(MOZ_WIDGET_TOOLKIT)))
+ifneq (,$(filter qt gtk2 beos photon, $(MOZ_WIDGET_TOOLKIT)))
 LOCAL_INCLUDES += -I$(srcdir)/../printingui/src/unixshared 
 endif
 
diff --git a/embedding/components/printingui/src/Makefile.in b/embedding/components/printingui/src/Makefile.in
index a009d9cd0a7e..92d81430a5c7 100644
--- a/embedding/components/printingui/src/Makefile.in
+++ b/embedding/components/printingui/src/Makefile.in
@@ -42,7 +42,7 @@ VPATH		= @srcdir@
 
 include $(DEPTH)/config/autoconf.mk
 
-ifneq (,$(filter gtk2 photon beos,$(MOZ_WIDGET_TOOLKIT)))
+ifneq (,$(filter qt gtk2 photon beos,$(MOZ_WIDGET_TOOLKIT)))
 PLATFORM_DIR += unixshared
 endif
 
diff --git a/widget/public/Makefile.in b/widget/public/Makefile.in
index 7eeafd62a72d..21bd2c5d5000 100644
--- a/widget/public/Makefile.in
+++ b/widget/public/Makefile.in
@@ -74,7 +74,7 @@ ifeq ($(MOZ_WIDGET_TOOLKIT),beos)
 EXPORTS		+= nsIDragSessionBeOS.h
 endif
 
-ifneq (,$(filter gtk2,$(MOZ_WIDGET_TOOLKIT)))
+ifneq (,$(filter qt gtk2,$(MOZ_WIDGET_TOOLKIT)))
 EXPORTS		+= \
 		nsIDragSessionGTK.h \
 		nsIPrintDialogService.h \