diff --git a/.github/workflows/dotnet-ec2-asg-e2e-test.yml b/.github/workflows/dotnet-ec2-asg-e2e-test.yml
index c49b0b6f8..52a1f2ba7 100644
--- a/.github/workflows/dotnet-ec2-asg-e2e-test.yml
+++ b/.github/workflows/dotnet-ec2-asg-e2e-test.yml
@@ -27,7 +27,7 @@ env:
   E2E_TEST_AWS_REGION: ${{ inputs.aws-region }}
   E2E_TEST_ACCOUNT_ID: ${{ secrets.APPLICATION_SIGNALS_E2E_TEST_ACCOUNT_ID }}
   E2E_TEST_ROLE_NAME: ${{ secrets.APPLICATION_SIGNALS_E2E_TEST_ROLE_NAME }}
-  SAMPLE_APP_ZIP: s3://${{ secrets.APP_SIGNALS_E2E_EC2_JAR }}-prod-${{ inputs.aws-region }}/dotnet-sample-app.zip
+  SAMPLE_APP_ZIP: s3://${{ secrets.APP_SIGNALS_E2E_EC2_JAR }}-prod-${{ env.E2E_TEST_AWS_REGION }}/dotnet-sample-app.zip
   METRIC_NAMESPACE: ApplicationSignals
   LOG_GROUP_NAME: /aws/application-signals/data
   ADOT_DISTRO_NAME: ${{ inputs.staging_distro_name }}
diff --git a/.github/workflows/dotnet-ec2-default-e2e-test.yml b/.github/workflows/dotnet-ec2-default-e2e-test.yml
index 4e5705372..55b0f8d15 100644
--- a/.github/workflows/dotnet-ec2-default-e2e-test.yml
+++ b/.github/workflows/dotnet-ec2-default-e2e-test.yml
@@ -27,7 +27,7 @@ env:
   E2E_TEST_AWS_REGION: ${{ inputs.aws-region }}
   E2E_TEST_ACCOUNT_ID: ${{ secrets.APPLICATION_SIGNALS_E2E_TEST_ACCOUNT_ID }}
   E2E_TEST_ROLE_NAME: ${{ secrets.APPLICATION_SIGNALS_E2E_TEST_ROLE_NAME }}
-  SAMPLE_APP_ZIP: s3://${{ secrets.APP_SIGNALS_E2E_EC2_JAR }}-prod-${{ inputs.aws-region }}/dotnet-sample-app.zip
+  SAMPLE_APP_ZIP: s3://${{ secrets.APP_SIGNALS_E2E_EC2_JAR }}-prod-${{ env.E2E_TEST_AWS_REGION }}/dotnet-sample-app.zip
   METRIC_NAMESPACE: ApplicationSignals
   LOG_GROUP_NAME: /aws/application-signals/data
   ADOT_WHEEL_NAME: ${{ inputs.staging_wheel_name }}
diff --git a/.github/workflows/dotnet-eks-e2e-test.yml b/.github/workflows/dotnet-eks-e2e-test.yml
index 96aefe075..62ea30192 100644
--- a/.github/workflows/dotnet-eks-e2e-test.yml
+++ b/.github/workflows/dotnet-eks-e2e-test.yml
@@ -29,6 +29,7 @@ permissions:
   contents: read
 
 env:
+  E2E_TEST_AWS_REGION: ${{ inputs.aws-region }}
   E2E_TEST_ACCOUNT_ID: ${{ secrets.APPLICATION_SIGNALS_E2E_TEST_ACCOUNT_ID }}
   E2E_TEST_ROLE_NAME: ${{ secrets.APPLICATION_SIGNALS_E2E_TEST_ROLE_NAME }}
   E2E_TEST_AWS_REGION: ${{ inputs.aws-region }}