diff --git a/.github/workflows/_deploy_lambda.yml b/.github/workflows/_deploy_lambda.yml
index 103dee82..6d1430a2 100644
--- a/.github/workflows/_deploy_lambda.yml
+++ b/.github/workflows/_deploy_lambda.yml
@@ -58,7 +58,7 @@ on:
         required: false
       TF_VAR_google_solar_api_key:
         required: false
-      TF_VAR_ORDNANCE_SURVEY_API_KEY:
+      TF_VAR_ordnance_survey_api_key:
         required: false
 
 jobs:
@@ -117,7 +117,7 @@ jobs:
           TF_VAR_domain_name: ${{ secrets.TF_VAR_domain_name }}
           TF_VAR_epc_auth_token: ${{ secrets.TF_VAR_epc_auth_token }}
           TF_VAR_google_solar_api_key: ${{ secrets.TF_VAR_google_solar_api_key }}
-          TF_VAR_ORDNANCE_SURVEY_API_KEY: ${{ secrets.ORDNANCE_SURVEY_API_KEY}}
+          TF_VAR_ordnance_survey_api_key: ${{ secrets.TF_VAR_ordnance_survey_api_key}}
         run: |
           terraform plan \
             -var="stage=${{ inputs.stage }}" \
@@ -143,7 +143,7 @@ jobs:
           TF_VAR_domain_name: ${{ secrets.TF_VAR_domain_name }}
           TF_VAR_epc_auth_token: ${{ secrets.TF_VAR_epc_auth_token }}
           TF_VAR_google_solar_api_key: ${{ secrets.TF_VAR_google_solar_api_key }}
-          TF_VAR_ORDNANCE_SURVEY_API_KEY: ${{ secrets.ORDNANCE_SURVEY_API_KEY}}
+          TF_VAR_ordnance_survey_api_key: ${{ secrets.TF_VAR_ordnance_survey_api_key}}
         run: |
           terraform destroy -auto-approve \
             -var="stage=${{ inputs.stage }}" \
diff --git a/infrastructure/terraform/lambda/ordnanceSurvey/main.tf b/infrastructure/terraform/lambda/ordnanceSurvey/main.tf
index 7e045621..fb8876fa 100644
--- a/infrastructure/terraform/lambda/ordnanceSurvey/main.tf
+++ b/infrastructure/terraform/lambda/ordnanceSurvey/main.tf
@@ -42,4 +42,4 @@ module "ordnance" {
 resource "aws_iam_role_policy_attachment" "ordanceSurvey_read_and_write" {
   role       = module.ordnance.role_name
   policy_arn = data.terraform_remote_state.shared.outputs.ordnance_s3_read_and_write_arn
-}
+}
\ No newline at end of file