diff --git a/linuxptp.spec b/linuxptp.spec
index eada77f..ebb45d3 100644
--- a/linuxptp.spec
+++ b/linuxptp.spec
@@ -1,3 +1,5 @@
+%global _hardened_build 1
+
 Name:		linuxptp
 Version:	1.4
 Release:	1%{?dist}
@@ -29,8 +31,8 @@ Supporting legacy APIs and other platforms is not a goal.
 
 %build
 make %{?_smp_mflags} \
-	EXTRA_CFLAGS="$RPM_OPT_FLAGS -pie -fpie" \
-	EXTRA_LDFLAGS="-Wl,-z,relro,-z,now"
+	EXTRA_CFLAGS="$RPM_OPT_FLAGS" \
+	EXTRA_LDFLAGS="$RPM_LD_FLAGS"
 
 %install
 %makeinstall