diff --git a/meta-networking/recipes-daemons/postfix/postfix.inc b/meta-networking/recipes-daemons/postfix/postfix.inc
index ac0589467a..a504b85d8d 100644
--- a/meta-networking/recipes-daemons/postfix/postfix.inc
+++ b/meta-networking/recipes-daemons/postfix/postfix.inc
@@ -205,6 +205,8 @@ do_install () {
     chown :postdrop ${D}${sbindir}/postdrop
     chmod g+s ${D}${sbindir}/postqueue
     chmod g+s ${D}${sbindir}/postdrop
+
+    rm -rf ${D}/etc/postfix/makedefs.out
 }
 
 do_install_append_class-native() {
@@ -212,12 +214,6 @@ do_install_append_class-native() {
     ln -sf ../sbin/sendmail.postfix ${D}${bindir}/mailq
 }
 
-do_install_append_class-target() {
-    # Remove references to buildmachine paths in target makedefs.out
-    sed -i 's:-fdebug-prefix-map[^ ]*::g; s:--sysroot=${STAGING_DIR_TARGET}::g' ${D}/etc/postfix/makedefs.out
-    sed -i 's:-I${STAGING_DIR_TARGET}:-I:g' ${D}/etc/postfix/makedefs.out
-}
-
 ALTERNATIVE_${PN} = "sendmail"
 ALTERNATIVE_TARGET[sendmail] = "${sbindir}/sendmail.postfix"
 ALTERNATIVE_LINK_NAME[sendmail] = "${sbindir}/sendmail"