diff --git a/mozilla/mozilla/Makefile.in b/mozilla/mozilla/Makefile.in
index ae4e161..b5ae517 100644
--- a/mozilla/mozilla/Makefile.in
+++ b/mozilla/mozilla/Makefile.in
@@ -286,7 +286,10 @@ ifdef BUILDING_JS
 check-%:
 	$(MAKE) -C js/src $@
 
-source-package install:
+install::
+	$(MAKE) -C js/src $@
+
+source-package::
 	$(MAKE) -C js/src $@
 
 # Every export rule depends on config/export, but the rule for config/export
diff --git a/mozilla/mozilla/js/src/Makefile.in b/mozilla/mozilla/js/src/Makefile.in
index 6e3c238..6a3b2f7 100644
--- a/mozilla/mozilla/js/src/Makefile.in
+++ b/mozilla/mozilla/js/src/Makefile.in
@@ -489,7 +489,7 @@ endif
 # (only possible when tar is found)
 ifneq (,$(TAR))
 
-source-package:
+source-package::
 	SRCDIR=$(srcdir) \
 	DIST=$(DIST) \
 	MAKE=$(MAKE) \
diff --git a/mozilla/mozilla/toolkit/mozapps/installer/packager.mk b/mozilla/mozilla/toolkit/mozapps/installer/packager.mk
index c40c068..e3fedbf 100644
--- a/mozilla/mozilla/toolkit/mozapps/installer/packager.mk
+++ b/mozilla/mozilla/toolkit/mozapps/installer/packager.mk
@@ -956,7 +956,7 @@ endif
 
 # source-package creates a source tarball from the files in MOZ_PKG_SRCDIR,
 # which is either set to a clean checkout or defaults to $topsrcdir
-source-package:
+source-package::
 	@echo 'Packaging source tarball...'
 	$(MKDIR) -p $(DIST)/$(PKG_SRCPACK_PATH)
 	(cd $(MOZ_PKG_SRCDIR) && $(CREATE_SOURCE_TAR) - $(DIR_TO_BE_PACKAGED)) | bzip2 -vf > $(SOURCE_TAR)