diff --git a/xpfe/browser/resources/content/Makefile.in b/xpfe/browser/resources/content/Makefile.in
index 71bc077adda1..07f1f1cdf649 100644
--- a/xpfe/browser/resources/content/Makefile.in
+++ b/xpfe/browser/resources/content/Makefile.in
@@ -57,9 +57,9 @@ include $(topsrcdir)/config/rules.mk
 GARBAGE	+= viewSource.xul.out
 
 viewSource.xul.out: viewSource.xul $(DEPTH)/config/build_number
-	$(INSTALL) $(srcdir)/viewSource.xul $@
+	cp $(srcdir)/viewSource.xul $@
 	$(PERL) $(topsrcdir)/config/aboutime.pl $@ $(DEPTH)/config/build_number
 
 install:: viewSource.xul.out
-	$(INSTALL) viewSource.xul.out $(CHROME_DIST)/$(CHROME_CONTENT_DIR)/viewSource.xul
+	cp viewSource.xul.out $(CHROME_DIST)/$(CHROME_CONTENT_DIR)/viewSource.xul
 
diff --git a/xpfe/browser/resources/locale/en-US/Makefile.in b/xpfe/browser/resources/locale/en-US/Makefile.in
index a58f4b9ea031..ee11e7a85955 100644
--- a/xpfe/browser/resources/locale/en-US/Makefile.in
+++ b/xpfe/browser/resources/locale/en-US/Makefile.in
@@ -46,9 +46,9 @@ include $(topsrcdir)/config/rules.mk
 GARBAGE	+= navigator.dtd.out
 
 navigator.dtd.out: navigator.dtd $(DEPTH)/config/build_number
-	$(INSTALL) $(srcdir)/navigator.dtd $@
+	cp $(srcdir)/navigator.dtd $@
 	$(PERL) $(topsrcdir)/config/aboutime.pl $@ $(DEPTH)/config/build_number
 
 install:: navigator.dtd.out
-	$(INSTALL) navigator.dtd.out $(CHROME_DIST)/$(CHROME_L10N_DIR)/navigator.dtd
+	cp navigator.dtd.out $(CHROME_DIST)/$(CHROME_L10N_DIR)/navigator.dtd