diff --git a/Makefile b/Makefile
index 46bd05e..0bdb5d9 100644
--- a/Makefile
+++ b/Makefile
@@ -9,13 +9,13 @@ TAR	= tar -czvf
 all: subdirs
 
 subdirs:
-	@for i in $(SUBDIRS); do (cd $$i && $(MAKE)) || exit; done
+	@for i in $(SUBDIRS); do (cd "$$i" && $(MAKE)) || exit; done
 
 clean:
-	@for i in $(SUBDIRS); do (cd $$i && $(MAKE) clean) || exit; done
+	@for i in $(SUBDIRS); do (cd "$$i" && $(MAKE) clean) || exit; done
 
 distclean:
-	@for i in $(SUBDIRS); do (cd $$i && $(MAKE) distclean) || exit; done
+	@for i in $(SUBDIRS); do (cd "$$i" && $(MAKE) distclean) || exit; done
 
 dist:
 	$(RM) -r -- $(PACKAGE)-$(VERSION)
@@ -44,9 +44,9 @@ dist:
 	$(RM) -- $(PACKAGE)-$(VERSION)
 
 install:
-	@for i in $(SUBDIRS); do (cd $$i && $(MAKE) install) || exit; done
+	@for i in $(SUBDIRS); do (cd "$$i" && $(MAKE) install) || exit; done
 
 uninstall:
-	@for i in $(SUBDIRS); do (cd $$i && $(MAKE) uninstall) || exit; done
+	@for i in $(SUBDIRS); do (cd "$$i" && $(MAKE) uninstall) || exit; done
 
 .PHONY: all subdirs clean distclean dist install uninstall
diff --git a/src/Makefile b/src/Makefile
index 8ce6c97..7cdfa13 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -12,13 +12,19 @@ clean:
 distclean: clean
 
 install:
+	$(MKDIR) $(DESTDIR)$(PREFIX)/bin
+	$(INSTALL) -m 0755 -- deforaos-build.sh $(DESTDIR)$(PREFIX)/bin/deforaos-build.sh
 	$(MKDIR) $(DESTDIR)$(PREFIX)/bin
 	$(INSTALL) -m 0755 -- deforaos-package.sh $(DESTDIR)$(PREFIX)/bin/deforaos-package.sh
 	$(MKDIR) $(DESTDIR)$(PREFIX)/bin
 	$(INSTALL) -m 0755 -- deforaos-release.sh $(DESTDIR)$(PREFIX)/bin/deforaos-release.sh
+	$(MKDIR) $(DESTDIR)$(PREFIX)/bin
+	$(INSTALL) -m 0755 -- deforaos-update.sh $(DESTDIR)$(PREFIX)/bin/deforaos-update.sh
 
 uninstall:
+	$(RM) -- $(DESTDIR)$(PREFIX)/bin/deforaos-build.sh
 	$(RM) -- $(DESTDIR)$(PREFIX)/bin/deforaos-package.sh
 	$(RM) -- $(DESTDIR)$(PREFIX)/bin/deforaos-release.sh
+	$(RM) -- $(DESTDIR)$(PREFIX)/bin/deforaos-update.sh
 
 .PHONY: all clean distclean install uninstall
diff --git a/src/project.conf b/src/project.conf
index 7e3b501..c11b3b8 100644
--- a/src/project.conf
+++ b/src/project.conf
@@ -1,5 +1,9 @@
 dist=Makefile,deforaos-build.sh,deforaos-document.sh,deforaos-package.sh,deforaos-release.sh,deforaos-update.sh
 
+[deforaos-build.sh]
+install=$(PREFIX)/bin
+mode=0755
+
 [deforaos-package.sh]
 install=$(PREFIX)/bin
 mode=0755
@@ -7,3 +11,7 @@ mode=0755
 [deforaos-release.sh]
 install=$(PREFIX)/bin
 mode=0755
+
+[deforaos-update.sh]
+install=$(PREFIX)/bin
+mode=0755