diff --git a/ap_tools/Makefile b/ap_tools/Makefile
index a79624a0..74e2d9f2 100644
--- a/ap_tools/Makefile
+++ b/ap_tools/Makefile
@@ -26,9 +26,9 @@ ap-check: ap-check.o $(libs)
 install: all
 	@if [ ! -d $(DESTDIR)$(MDEVCTL_CALLOUTS) ]; then \
 		mkdir -p $(DESTDIR)$(MDEVCTL_CALLOUTS); \
-		chown $(OWNER).$(GROUP) $(DESTDIR)$(MDEVCTL_DIR); \
-		chown $(OWNER).$(GROUP) $(DESTDIR)$(MDEVCTL_SCRIPTS); \
-		chown $(OWNER).$(GROUP) $(DESTDIR)$(MDEVCTL_CALLOUTS); \
+		chown $(OWNER):$(GROUP) $(DESTDIR)$(MDEVCTL_DIR); \
+		chown $(OWNER):$(GROUP) $(DESTDIR)$(MDEVCTL_SCRIPTS); \
+		chown $(OWNER):$(GROUP) $(DESTDIR)$(MDEVCTL_CALLOUTS); \
 		chmod 755 $(DESTDIR)$(MDEVCTL_DIR); \
 		chmod 755 $(DESTDIR)$(MDEVCTL_SCRIPTS); \
 		chmod 755 $(DESTDIR)$(MDEVCTL_CALLOUTS); \
@@ -37,9 +37,9 @@ install: all
 		$(DESTDIR)$(MDEVCTL_CALLOUTS)
 	@if [ ! -d $(DESTDIR)$(MDEVCTL_DEP_CALLOUTS) ]; then \
 		mkdir -p $(DESTDIR)$(MDEVCTL_DEP_CALLOUTS); \
-		chown $(OWNER).$(GROUP) $(DESTDIR)$(MDEVCTL_DEP_DIR); \
-		chown $(OWNER).$(GROUP) $(DESTDIR)$(MDEVCTL_DEP_SCRIPTS); \
-		chown $(OWNER).$(GROUP) $(DESTDIR)$(MDEVCTL_DEP_CALLOUTS); \
+		chown $(OWNER):$(GROUP) $(DESTDIR)$(MDEVCTL_DEP_DIR); \
+		chown $(OWNER):$(GROUP) $(DESTDIR)$(MDEVCTL_DEP_SCRIPTS); \
+		chown $(OWNER):$(GROUP) $(DESTDIR)$(MDEVCTL_DEP_CALLOUTS); \
 		chmod 755 $(DESTDIR)$(MDEVCTL_DEP_DIR); \
 		chmod 755 $(DESTDIR)$(MDEVCTL_DEP_SCRIPTS); \
 		chmod 755 $(DESTDIR)$(MDEVCTL_DEP_CALLOUTS); \
diff --git a/hmcdrvfs/Makefile b/hmcdrvfs/Makefile
index a95ab9ed..46afc5e2 100644
--- a/hmcdrvfs/Makefile
+++ b/hmcdrvfs/Makefile
@@ -52,7 +52,7 @@ install-scripts: lshmc
 		cat $$i | \
 		sed -e 's/%S390_TOOLS_VERSION%/$(S390_TOOLS_RELEASE)/' \
 		>$(DESTDIR)$(USRSBINDIR)/$$i; \
-		chown $(OWNER).$(GROUP) $(DESTDIR)$(USRSBINDIR)/$$i; \
+		chown $(OWNER):$(GROUP) $(DESTDIR)$(USRSBINDIR)/$$i; \
 		chmod 755 $(DESTDIR)$(USRSBINDIR)/$$i; \
 	done
 
diff --git a/hsci/Makefile b/hsci/Makefile
index 6f7474c5..b70ee110 100644
--- a/hsci/Makefile
+++ b/hsci/Makefile
@@ -5,7 +5,7 @@ all:
 install: hsci
 	$(SED) -e 's/%S390_TOOLS_VERSION%/$(S390_TOOLS_RELEASE)/' \
 	< hsci >$(DESTDIR)$(BINDIR)/hsci; \
-	chown $(OWNER).$(GROUP) $(DESTDIR)$(BINDIR)/hsci; \
+	chown $(OWNER):$(GROUP) $(DESTDIR)$(BINDIR)/hsci; \
 	chmod 755 $(DESTDIR)$(BINDIR)/hsci; \
 	$(INSTALL) -d -m 755 $(DESTDIR)$(BINDIR) $(DESTDIR)$(MANDIR)/man8
 	$(INSTALL) -g $(GROUP) -o $(OWNER) -m 644 hsci.8 \
diff --git a/ip_watcher/Makefile b/ip_watcher/Makefile
index 22f93bfb..285fbf0d 100644
--- a/ip_watcher/Makefile
+++ b/ip_watcher/Makefile
@@ -12,7 +12,7 @@ clean:
 install: ip_watcher.pl xcec-bridge start_hsnc.sh
 	$(SED) -e 's/%S390_TOOLS_VERSION%/$(S390_TOOLS_RELEASE)/' \
 	< start_hsnc.sh >$(DESTDIR)$(USRSBINDIR)/start_hsnc.sh; \
-	chown $(OWNER).$(GROUP) $(DESTDIR)$(USRSBINDIR)/start_hsnc.sh; \
+	chown $(OWNER):$(GROUP) $(DESTDIR)$(USRSBINDIR)/start_hsnc.sh; \
 	chmod 755 $(DESTDIR)$(USRSBINDIR)/start_hsnc.sh; \
 	$(INSTALL) -g $(GROUP) -o $(OWNER) -m 755 ip_watcher.pl \
 		$(DESTDIR)$(USRSBINDIR)
diff --git a/netboot/Makefile b/netboot/Makefile
index 2c847758..ea7b56f8 100644
--- a/netboot/Makefile
+++ b/netboot/Makefile
@@ -15,13 +15,13 @@ install: install-scripts
 install-scripts: $(SCRIPTS)
 	@if [ ! -d $(DESTDIR)$(NETBOOT_SAMPLEDIR) ]; then \
 		mkdir -p $(DESTDIR)$(NETBOOT_SAMPLEDIR); \
-		chown $(OWNER).$(GROUP) $(DESTDIR)$(NETBOOT_SAMPLEDIR); \
+		chown $(OWNER):$(GROUP) $(DESTDIR)$(NETBOOT_SAMPLEDIR); \
 		chmod 755 $(DESTDIR)$(NETBOOT_SAMPLEDIR); \
 	fi; \
 	for i in $^; do \
 		$(SED) -e 's/%S390_TOOLS_VERSION%/$(S390_TOOLS_RELEASE)/' \
 		< $$i >$(DESTDIR)$(NETBOOT_SAMPLEDIR)/$$i; \
-		chown $(OWNER).$(GROUP) $(DESTDIR)$(NETBOOT_SAMPLEDIR)/$$i; \
+		chown $(OWNER):$(GROUP) $(DESTDIR)$(NETBOOT_SAMPLEDIR)/$$i; \
 		chmod 755 $(DESTDIR)$(NETBOOT_SAMPLEDIR)/$$i; \
 	done
 
diff --git a/qethconf/Makefile b/qethconf/Makefile
index 0b099a2b..76750028 100644
--- a/qethconf/Makefile
+++ b/qethconf/Makefile
@@ -5,7 +5,7 @@ all:
 install: qethconf
 	$(SED) -e 's/%S390_TOOLS_VERSION%/$(S390_TOOLS_RELEASE)/' \
 	< qethconf >$(DESTDIR)$(BINDIR)/qethconf; \
-	chown $(OWNER).$(GROUP) $(DESTDIR)$(BINDIR)/qethconf; \
+	chown $(OWNER):$(GROUP) $(DESTDIR)$(BINDIR)/qethconf; \
 	chmod 755 $(DESTDIR)$(BINDIR)/qethconf; \
 	$(INSTALL) -d -m 755 $(DESTDIR)$(BINDIR) $(DESTDIR)$(MANDIR)/man8
 	$(INSTALL) -g $(GROUP) -o $(OWNER) -m 644 qethconf.8 \
diff --git a/zconf/Makefile b/zconf/Makefile
index 008b5984..7f75d78e 100644
--- a/zconf/Makefile
+++ b/zconf/Makefile
@@ -25,7 +25,7 @@ install-scripts:	$(SCRIPTS)
 		cat $$i | \
 		sed -e 's/%S390_TOOLS_VERSION%/$(S390_TOOLS_RELEASE)/' \
 		>$(DESTDIR)$(BINDIR)/$$i; \
-		chown $(OWNER).$(GROUP) $(DESTDIR)$(BINDIR)/$$i; \
+		chown $(OWNER):$(GROUP) $(DESTDIR)$(BINDIR)/$$i; \
 		chmod 755 $(DESTDIR)$(BINDIR)/$$i; \
 	done
 
@@ -34,15 +34,15 @@ install-usrsbin-scripts:	$(USRSBIN_SCRIPTS)
 		cat $$i | \
 		sed -e 's/%S390_TOOLS_VERSION%/$(S390_TOOLS_RELEASE)/' \
 		>$(DESTDIR)$(USRSBINDIR)/$$i; \
-		chown $(OWNER).$(GROUP) $(DESTDIR)$(USRSBINDIR)/$$i; \
+		chown $(OWNER):$(GROUP) $(DESTDIR)$(USRSBINDIR)/$$i; \
 		chmod 755 $(DESTDIR)$(USRSBINDIR)/$$i; \
 	done
 
 install-manpages:	$(MANPAGES)
 	@if [ ! -d $(DESTDIR)$(MANDIR) ]; then \
 		mkdir -p $(DESTDIR)$(MANDIR)/man8; \
-		chown $(OWNER).$(GROUP) $(DESTDIR)$(MANDIR); \
-		chown $(OWNER).$(GROUP) $(DESTDIR)$(MANDIR)/man8; \
+		chown $(OWNER):$(GROUP) $(DESTDIR)$(MANDIR); \
+		chown $(OWNER):$(GROUP) $(DESTDIR)$(MANDIR)/man8; \
 		chmod 755 $(DESTDIR)$(MANDIR); \
 		chmod 755 $(DESTDIR)$(MANDIR)/man8; \
 	fi; \