diff --git a/server-pgsql/alpine/docker-entrypoint.sh b/server-pgsql/alpine/docker-entrypoint.sh
index 17e685e10..f21a62da8 100755
--- a/server-pgsql/alpine/docker-entrypoint.sh
+++ b/server-pgsql/alpine/docker-entrypoint.sh
@@ -10,7 +10,7 @@ if [ "${DEBUG_MODE,,}" == "true" ]; then
 fi
 
 #Enable PostgreSQL timescaleDB feature:
-ENABLE_TIMESCALEDB=${ENABLE_TIMESCALEDB:-"false"}
+: ${ENABLE_TIMESCALEDB:="false"}
 
 # Default directories
 # User 'zabbix' home directory
diff --git a/server-pgsql/centos/docker-entrypoint.sh b/server-pgsql/centos/docker-entrypoint.sh
index 17e685e10..f21a62da8 100755
--- a/server-pgsql/centos/docker-entrypoint.sh
+++ b/server-pgsql/centos/docker-entrypoint.sh
@@ -10,7 +10,7 @@ if [ "${DEBUG_MODE,,}" == "true" ]; then
 fi
 
 #Enable PostgreSQL timescaleDB feature:
-ENABLE_TIMESCALEDB=${ENABLE_TIMESCALEDB:-"false"}
+: ${ENABLE_TIMESCALEDB:="false"}
 
 # Default directories
 # User 'zabbix' home directory
diff --git a/server-pgsql/ubuntu/docker-entrypoint.sh b/server-pgsql/ubuntu/docker-entrypoint.sh
index ca12dbb0d..48c642eff 100755
--- a/server-pgsql/ubuntu/docker-entrypoint.sh
+++ b/server-pgsql/ubuntu/docker-entrypoint.sh
@@ -10,7 +10,7 @@ if [ "${DEBUG_MODE,,}" == "true" ]; then
 fi
 
 #Enable PostgreSQL timescaleDB feature:
-ENABLE_TIMESCALEDB=${ENABLE_TIMESCALEDB:-"false"}
+: ${ENABLE_TIMESCALEDB:="false"}
 
 # Default directories
 # User 'zabbix' home directory
diff --git a/web-apache-pgsql/centos/docker-entrypoint.sh b/web-apache-pgsql/centos/docker-entrypoint.sh
index be20aea2e..87cf18a5a 100755
--- a/web-apache-pgsql/centos/docker-entrypoint.sh
+++ b/web-apache-pgsql/centos/docker-entrypoint.sh
@@ -20,9 +20,6 @@ fi
 # Default timezone for web interface
 : ${PHP_TZ:="Europe/Riga"}
 
-#Enable PostgreSQL timescaleDB feature:
-ENABLE_TIMESCALEDB=${ENABLE_TIMESCALEDB:-"false"}
-
 # Default directories
 # Configuration files directory
 ZABBIX_ETC_DIR="/etc/zabbix"
diff --git a/web-apache-pgsql/ubuntu/docker-entrypoint.sh b/web-apache-pgsql/ubuntu/docker-entrypoint.sh
index 23db5c5ac..c20c4d59a 100755
--- a/web-apache-pgsql/ubuntu/docker-entrypoint.sh
+++ b/web-apache-pgsql/ubuntu/docker-entrypoint.sh
@@ -20,9 +20,6 @@ fi
 # Default timezone for web interface
 : ${PHP_TZ:="Europe/Riga"}
 
-#Enable PostgreSQL timescaleDB feature:
-ENABLE_TIMESCALEDB=${ENABLE_TIMESCALEDB:-"false"}
-
 # Default directories
 # Configuration files directory
 ZABBIX_ETC_DIR="/etc/zabbix"
diff --git a/web-nginx-pgsql/alpine/docker-entrypoint.sh b/web-nginx-pgsql/alpine/docker-entrypoint.sh
index 7743fb050..c750f59e0 100755
--- a/web-nginx-pgsql/alpine/docker-entrypoint.sh
+++ b/web-nginx-pgsql/alpine/docker-entrypoint.sh
@@ -20,9 +20,6 @@ fi
 # Default timezone for web interface
 : ${PHP_TZ:="Europe/Riga"}
 
-#Enable PostgreSQL timescaleDB feature:
-ENABLE_TIMESCALEDB=${ENABLE_TIMESCALEDB:-"false"}
-
 # Default directories
 # Configuration files directory
 ZABBIX_ETC_DIR="/etc/zabbix"
diff --git a/web-nginx-pgsql/centos/docker-entrypoint.sh b/web-nginx-pgsql/centos/docker-entrypoint.sh
index 2a75059e1..5232cd04d 100755
--- a/web-nginx-pgsql/centos/docker-entrypoint.sh
+++ b/web-nginx-pgsql/centos/docker-entrypoint.sh
@@ -20,9 +20,6 @@ fi
 # Default timezone for web interface
 : ${PHP_TZ:="Europe/Riga"}
 
-#Enable PostgreSQL timescaleDB feature:
-ENABLE_TIMESCALEDB=${ENABLE_TIMESCALEDB:-"false"}
-
 # Default directories
 # Configuration files directory
 ZABBIX_ETC_DIR="/etc/zabbix"
diff --git a/web-nginx-pgsql/ubuntu/docker-entrypoint.sh b/web-nginx-pgsql/ubuntu/docker-entrypoint.sh
index fef64a9ec..b9bdf835c 100755
--- a/web-nginx-pgsql/ubuntu/docker-entrypoint.sh
+++ b/web-nginx-pgsql/ubuntu/docker-entrypoint.sh
@@ -20,9 +20,6 @@ fi
 # Default timezone for web interface
 : ${PHP_TZ:="Europe/Riga"}
 
-#Enable PostgreSQL timescaleDB feature:
-ENABLE_TIMESCALEDB=${ENABLE_TIMESCALEDB:-"false"}
-
 # Default directories
 # Configuration files directory
 ZABBIX_ETC_DIR="/etc/zabbix"