diff --git a/GitLab/custom-executor.md b/GitLab/custom-executor.md
index 90d4549..8b957f6 100644
--- a/GitLab/custom-executor.md
+++ b/GitLab/custom-executor.md
@@ -59,13 +59,13 @@ To do that:
 
 The provided scripts expect the following environment variables to be set:
 
-- `CUSTOM_ENV_ORKA_TOKEN` - User authentication to connect to the Orka environment. Created by running `orka3 user get-token` or `orka3 serviceaccount token <service-account>`.
-- `CUSTOM_ENV_ORKA_ENDPOINT` - The Orka endpoint. Usually, it is `http://10.221.188.20`.
-- `CUSTOM_ENV_ORKA_CONFIG_NAME` - The name of the VM config to be deployed.
-- `CUSTOM_ENV_ORKA_VM_NAME_PREFIX` - The prefix of the generated VM name. Defaults to `gl-runner`.
-- `CUSTOM_ENV_ORKA_VM_USER` - User used to SSH to the VM.
-- `CUSTOM_ENV_ORKA_SSH_KEY_FILE` - The private SSH key contents to use when connecting to the VM. This key was created earlier during the Orka base image setup.
-- `CUSTOM_ENV_VM_DEPLOYMENT_ATTEMPTS` - The number of attempts the executor tries to deploy a VM before it fails. Defaults to `1`. Note - GitLab automatically retries 3 times. This env var allows additional retry attempts.
+- `ORKA_TOKEN` - User authentication to connect to the Orka environment. Created by running `orka3 user get-token` or `orka3 serviceaccount token <service-account>`.
+- `ORKA_ENDPOINT` - The Orka endpoint. Usually, it is `http://10.221.188.20`.
+- `ORKA_CONFIG_NAME` - The name of the VM config to be deployed.
+- `ORKA_VM_NAME_PREFIX` - The prefix of the generated VM name. Defaults to `gl-runner`.
+- `ORKA_VM_USER` - User used to SSH to the VM. Defaults to `admin`.
+- `ORKA_SSH_KEY_FILE` - The private SSH key contents to use when connecting to the VM. This key was created earlier during the Orka base image setup.
+- `VM_DEPLOYMENT_ATTEMPTS` - The number of attempts the executor tries to deploy a VM before it fails. Defaults to `1`. Note - GitLab automatically retries 3 times. This env var allows additional retry attempts.
 
 For more information about GitLab CI/CD environment variables, see [here][env-variables].
 
diff --git a/GitLab/scripts/base.sh b/GitLab/scripts/base.sh
index fcaa53f..72bffc6 100755
--- a/GitLab/scripts/base.sh
+++ b/GitLab/scripts/base.sh
@@ -3,11 +3,11 @@
 BUILD_ID="runner-$CUSTOM_ENV_CI_RUNNER_ID-project-$CUSTOM_ENV_CI_PROJECT_ID-concurrent-$CUSTOM_ENV_CI_CONCURRENT_PROJECT_ID"
 export CONNECTION_INFO_ID=$BUILD_ID-connection-info
 
-export ORKA_TOKEN=${CUSTOM_ENV_ORKA_TOKEN:-}
-export ORKA_ENDPOINT=${CUSTOM_ENV_ORKA_ENDPOINT:-}
-export ORKA_CONFIG_NAME=${CUSTOM_ENV_ORKA_CONFIG_NAME:-}
-export ORKA_VM_NAME_PREFIX=${CUSTOM_ENV_ORKA_VM_NAME_PREFIX:-gl-runner}
-export ORKA_VM_USER=${CUSTOM_ENV_ORKA_VM_USER:-admin}
+export ORKA_TOKEN=${ORKA_TOKEN:-${CUSTOM_ENV_ORKA_TOKEN:-}}
+export ORKA_ENDPOINT=${ORKA_ENDPOINT:-${CUSTOM_ENV_ORKA_ENDPOINT:-}}
+export ORKA_CONFIG_NAME=${ORKA_CONFIG_NAME:-${CUSTOM_ENV_ORKA_CONFIG_NAME:-}}
+export ORKA_VM_NAME_PREFIX=${ORKA_VM_NAME_PREFIX:-${CUSTOM_ENV_ORKA_VM_NAME_PREFIX:-gl-runner}}
+export ORKA_VM_USER=${ORKA_VM_USER:-${CUSTOM_ENV_ORKA_VM_USER:-admin}}
 ORKA_SSH_KEY_FILE=${CUSTOM_ENV_ORKA_SSH_KEY_FILE:-}
 
 mkdir -p ~/.ssh
diff --git a/GitLab/scripts/prepare.sh b/GitLab/scripts/prepare.sh
index 8f43a91..0d757af 100755
--- a/GitLab/scripts/prepare.sh
+++ b/GitLab/scripts/prepare.sh
@@ -6,7 +6,7 @@ currentDir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
 
 source "${currentDir}/base.sh"
 
-VM_DEPLOYMENT_ATTEMPTS=${CUSTOM_ENV_VM_DEPLOYMENT_ATTEMPTS:-1}
+VM_DEPLOYMENT_ATTEMPTS=${VM_DEPLOYMENT_ATTEMPTS:-${CUSTOM_ENV_VM_DEPLOYMENT_ATTEMPTS:-1}}
 
 function cleanup_on_failure {
     if [ -f "$BUILD_ID" ]; then