diff --git a/CHANGELOG.md b/CHANGELOG.md
index 16ee5b53..e4fd631c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -41,6 +41,7 @@ All notable changes to this project will be documented in this file.
 
 ### Fixed
 
+- Delete WAZUH_AGENT_GROUP variable. ([#2263](https://github.com/wazuh/wazuh-docker/pull/2263))
 - Delete etc/lists references ([#2129](https://github.com/wazuh/wazuh-docker/pull/2129))
 
 ### Deleted
diff --git a/build-docker-images/wazuh-agent/Dockerfile b/build-docker-images/wazuh-agent/Dockerfile
index 162135c9..3ad8e6bd 100644
--- a/build-docker-images/wazuh-agent/Dockerfile
+++ b/build-docker-images/wazuh-agent/Dockerfile
@@ -10,7 +10,6 @@ ARG WAZUH_MANAGER_PORT='CHANGE_MANAGER_PORT'
 ARG WAZUH_REGISTRATION_SERVER='CHANGE_ENROLL_IP'
 ARG WAZUH_REGISTRATION_PORT='CHANGE_ENROLL_PORT'
 ARG WAZUH_AGENT_NAME='CHANGE_AGENT_NAME'
-ARG WAZUH_AGENT_GROUPS='CHANGE_AGENT_GROUPS'
 ARG TARGETARCH
 ARG wazuh_agent_amd64_rpm
 ARG wazuh_agent_arm64_rpm
diff --git a/build-docker-images/wazuh-agent/config/etc/cont-init.d/0-wazuh-init b/build-docker-images/wazuh-agent/config/etc/cont-init.d/0-wazuh-init
index a50b4662..fa5578a1 100644
--- a/build-docker-images/wazuh-agent/config/etc/cont-init.d/0-wazuh-init
+++ b/build-docker-images/wazuh-agent/config/etc/cont-init.d/0-wazuh-init
@@ -9,7 +9,6 @@ WAZUH_REGISTRATION_SERVER=${WAZUH_REGISTRATION_SERVER:-$WAZUH_MANAGER_SERVER}
 WAZUH_REGISTRATION_PORT=${WAZUH_REGISTRATION_PORT:-"1515"}
 WAZUH_REGISTRATION_PASSWORD=$WAZUH_REGISTRATION_PASSWORD
 WAZUH_AGENT_NAME=${WAZUH_AGENT_NAME:-"wazuh-agent-$HOSTNAME"}
-WAZUH_AGENT_GROUPS=${WAZUH_AGENT_GROUPS:-"default"}
 
 ##############################################################################
 # Aux functions
@@ -68,7 +67,6 @@ set_manager_conn() {
   sed -i "s#<manager_address>CHANGE_ENROLL_IP</manager_address>#<manager_address>$WAZUH_REGISTRATION_SERVER</manager_address>#g" ${WAZUH_INSTALL_PATH}/etc/ossec.conf
   sed -i "s#<port>CHANGE_ENROLL_PORT</port>#<port>$WAZUH_REGISTRATION_PORT</port>#g" ${WAZUH_INSTALL_PATH}/etc/ossec.conf
   sed -i "s#<agent_name>CHANGE_AGENT_NAME</agent_name>#<agent_name>$WAZUH_AGENT_NAME</agent_name>#g" ${WAZUH_INSTALL_PATH}/etc/ossec.conf
-  sed -i "s#<groups>CHANGE_AGENT_GROUPS</groups>#<groups>$WAZUH_AGENT_GROUPS</groups>#g" ${WAZUH_INSTALL_PATH}/etc/ossec.conf
   [ -n "$WAZUH_REGISTRATION_PASSWORD" ] && \
   echo "$WAZUH_REGISTRATION_PASSWORD" > ${WAZUH_INSTALL_PATH}/etc/authd.pass && \
   chown root:wazuh ${WAZUH_INSTALL_PATH}/etc/authd.pass && \
diff --git a/docs/ref/configuration/environment-variables.md b/docs/ref/configuration/environment-variables.md
index eac90d9e..09ab6e53 100644
--- a/docs/ref/configuration/environment-variables.md
+++ b/docs/ref/configuration/environment-variables.md
@@ -91,7 +91,6 @@ environment:
   - WAZUH_REGISTRATION_SERVER=wazuh.manager
   - WAZUH_REGISTRATION_PORT=1515
   - WAZUH_AGENT_NAME=my-agent
-  - WAZUH_AGENT_GROUPS=default
   - WAZUH_REGISTRATION_PASSWORD=StrongPassword
 ```