diff --git a/tools/power/x86/turbostat/Makefile b/tools/power/x86/turbostat/Makefile
index f856495..984cc00 100644
--- a/tools/power/x86/turbostat/Makefile
+++ b/tools/power/x86/turbostat/Makefile
@@ -1,3 +1,5 @@
+DESTDIR ?=
+
 turbostat : turbostat.c
 CFLAGS +=	-Wall
 
@@ -5,5 +7,5 @@ clean :
 	rm -f turbostat
 
 install :
-	install turbostat /usr/bin/turbostat
-	install turbostat.8 /usr/share/man/man8
+	install turbostat ${DESTDIR}/usr/bin/turbostat
+	install turbostat.8 ${DESTDIR}/usr/share/man/man8
diff --git a/tools/power/x86/x86_energy_perf_policy/Makefile b/tools/power/x86/x86_energy_perf_policy/Makefile
index f458237..f9824f0 100644
--- a/tools/power/x86/x86_energy_perf_policy/Makefile
+++ b/tools/power/x86/x86_energy_perf_policy/Makefile
@@ -1,8 +1,10 @@
+DESTDIR ?= 
+
 x86_energy_perf_policy : x86_energy_perf_policy.c
 
 clean :
 	rm -f x86_energy_perf_policy
 
 install :
-	install x86_energy_perf_policy /usr/bin/
-	install x86_energy_perf_policy.8 /usr/share/man/man8/
+	install x86_energy_perf_policy ${DESTDIR}/usr/bin/
+	install x86_energy_perf_policy.8 ${DESTDIR}/usr/share/man/man8/