diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6687eb2..46d2f85 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,7 +8,7 @@ The format is based on [Keep a Changelog][keepachangelog] and this project adher
 
 ### Added
 
-- Possibility of changing DNS resolvers using environment variables `NAME_SERVER_1` (primary) and `NAME_SERVER_2` (secondary)
+- Possibility of changing DNS resolvers using environment variables `PRIMARY_RESOLVER` (primary) and `SECONDARY_RESOLVER` (secondary)
 
 ## v1.5.0
 
diff --git a/README.md b/README.md
index c8763ee..946ac34 100644
--- a/README.md
+++ b/README.md
@@ -31,12 +31,12 @@ All supported image tags [can be found here][link_docker_tags].
 
 ## Supported environment variables
 
-| Variable name    | Description                         | Example                |
-|------------------|-------------------------------------|------------------------|
-| `PROXY_LOGIN`    | Authorization login                 | `username`             |
-| `PROXY_PASSWORD` | Authorization password              | `password`             |
-| `NAME_SERVER_1`  | Primary nameserver (dns resolver)   | `8.8.8.8`              |
-| `NAME_SERVER_2`  | Secondary nameserver (dns resolver) | `2001:4860:4860::8844` |
+| Variable name        | Description                         | Example                |
+|----------------------|-------------------------------------|------------------------|
+| `PROXY_LOGIN`        | Authorization login                 | `username`             |
+| `PROXY_PASSWORD`     | Authorization password              | `password`             |
+| `PRIMARY_RESOLVER`   | Primary nameserver (dns resolver)   | `8.8.8.8`              |
+| `SECONDARY_RESOLVER` | Secondary nameserver (dns resolver) | `2001:4860:4860::8844` |
 
 ## How can I use this?
 
@@ -57,7 +57,7 @@ $ docker run --rm -d \
     -p "1080:1080/tcp" \
     -e "PROXY_LOGIN=evil" \
     -e "PROXY_PASSWORD=live" \
-    -e "NAME_SERVER_1=2001:4860:4860::8888" \
+    -e "PRIMARY_RESOLVER=2001:4860:4860::8888" \
     tarampampam/3proxy:latest
 ```
 
diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
index d303e87..4fcc477 100755
--- a/docker-entrypoint.sh
+++ b/docker-entrypoint.sh
@@ -3,22 +3,22 @@ set -e
 
 PROXY_LOGIN=${PROXY_LOGIN:-} # string
 PROXY_PASSWORD=${PROXY_PASSWORD:-} # string
-NAME_SERVER_1=${NAME_SERVER_1:-} # string
-NAME_SERVER_2=${NAME_SERVER_2:-} # string
+PRIMARY_RESOLVER=${PRIMARY_RESOLVER:-} # string
+SECONDARY_RESOLVER=${SECONDARY_RESOLVER:-} # string
 
 if [ -n "$PROXY_LOGIN" ] && [ -n "$PROXY_PASSWORD" ]; then
   echo "$0: setup '${PROXY_LOGIN}:${PROXY_PASSWORD}' as proxy user";
   sed -i "s~#AUTH_SETTINGS~users ${PROXY_LOGIN}:CL:${PROXY_PASSWORD}\nauth strong\nallow ${PROXY_LOGIN}~" /etc/3proxy/3proxy.cfg
 fi;
 
-if [ -n "$NAME_SERVER_1" ]; then
-  echo "$0: setup '${NAME_SERVER_1}' as the first nameserver";
-  sed -i "s~#NSERVER1~nserver ${NAME_SERVER_1}~" /etc/3proxy/3proxy.cfg
+if [ -n "$PRIMARY_RESOLVER" ]; then
+  echo "$0: setup '${PRIMARY_RESOLVER}' as the first nameserver";
+  sed -i "s~#NSERVER1~nserver ${PRIMARY_RESOLVER}~" /etc/3proxy/3proxy.cfg
 fi;
 
-if [ -n "$NAME_SERVER_2" ]; then
-  echo "$0: setup '${NAME_SERVER_2}' as the second nameserver";
-  sed -i "s~#NSERVER2~nserver ${NAME_SERVER_2}~" /etc/3proxy/3proxy.cfg
+if [ -n "$SECONDARY_RESOLVER" ]; then
+  echo "$0: setup '${SECONDARY_RESOLVER}' as the second nameserver";
+  sed -i "s~#NSERVER2~nserver ${SECONDARY_RESOLVER}~" /etc/3proxy/3proxy.cfg
 fi;
 
 exec "$@"