diff --git a/common/installer.sh b/common/installer.sh
index 2aa892a..83ee10b 100644
--- a/common/installer.sh
+++ b/common/installer.sh
@@ -1,4 +1,4 @@
-readonly GET_LIST_PREFIX=/ipset/get_
+GET_LIST_PREFIX=/ipset/get_
 
 SYSTEMD_DIR=/lib/systemd
 [ -d "$SYSTEMD_DIR" ] || SYSTEMD_DIR=/usr/lib/systemd
diff --git a/common/ipt.sh b/common/ipt.sh
index f9fbce7..f564b5e 100644
--- a/common/ipt.sh
+++ b/common/ipt.sh
@@ -1,5 +1,5 @@
 std_ports
-readonly ipt_connbytes="-m connbytes --connbytes-dir=original --connbytes-mode=packets --connbytes"
+ipt_connbytes="-m connbytes --connbytes-dir=original --connbytes-mode=packets --connbytes"
 
 ipt()
 {
diff --git a/common/list.sh b/common/list.sh
index c399bf3..53bc83e 100644
--- a/common/list.sh
+++ b/common/list.sh
@@ -1,5 +1,5 @@
-readonly HOSTLIST_MARKER="<HOSTLIST>"
-readonly HOSTLIST_NOAUTO_MARKER="<HOSTLIST_NOAUTO>"
+HOSTLIST_MARKER="<HOSTLIST>"
+HOSTLIST_NOAUTO_MARKER="<HOSTLIST_NOAUTO>"
 
 find_hostlists()
 {
diff --git a/common/nft.sh b/common/nft.sh
index 391a091..0bd764d 100644
--- a/common/nft.sh
+++ b/common/nft.sh
@@ -1,5 +1,5 @@
 [ -n "$ZAPRET_NFT_TABLE" ] || ZAPRET_NFT_TABLE=zapret
-readonly nft_connbytes="ct original packets"
+nft_connbytes="ct original packets"
 
 # required for : nft -f -
 create_dev_stdin