diff --git a/util/postinstall.sh.in b/util/postinstall.sh.in
index c9ebd17..d9d58ab 100755
--- a/util/postinstall.sh.in
+++ b/util/postinstall.sh.in
@@ -380,6 +380,9 @@
    rm -f "$KEYTMPFILE"
    echo "Done."
 
+   echo "Fix piler.conf path in pilerpurge.py"
+   sed "s%\/etc\/piler\/piler\.conf%${SYSCONFDIR}\/piler\/piler\.conf%" "${LIBEXECDIR}/pilerpurge.py"
+
    make_certificate
 
 cat <<SOCKHELPER > "$SOCKET_HELPER_SCRIPT"
@@ -391,7 +394,7 @@
    MYSQL_SOCKET=$(perl "$SOCKET_HELPER_SCRIPT" "$MYSQL_SOCKET")
 
    sed -e "s/mysqlpwd=verystrongpassword/mysqlpwd=${MYSQL_PASSWORD}/" -e "s/tls_enable=0/tls_enable=1/" -e "s/mysqlsocket=\/var\/run\/mysqld\/mysqld.sock/mysqlsocket=${MYSQL_SOCKET}/" "${SYSCONFDIR}/piler/piler.conf.dist" > "$PILERCONF_TMP"
-   [[ grep queuedir "$PILERCONF_TMP" ]] || echo queuedir=/var/piler/store >> "$PILERCONF_TMP"
+   [[ $(grep queuedir "$PILERCONF_TMP") ]] || echo queuedir=/var/piler/store >> "$PILERCONF_TMP"
    cat "$PILERCONF_TMP" > "${SYSCONFDIR}/piler/piler.conf"
    rm -f "$PILERCONF_TMP"