diff --git a/buildspec-test.yml b/buildspec-test.yml
index 2e690f2..fa76559 100644
--- a/buildspec-test.yml
+++ b/buildspec-test.yml
@@ -5,7 +5,7 @@ phases:
     commands:
       - export IMAGE_TAG=$(echo $CODEBUILD_RESOLVED_SOURCE_VERSION | cut -c 1-7)
       - export ACCOUNT=$(echo $CODEBUILD_BUILD_ARN |cut -f5 -d:)
-      - export $(cat mu-env.sh)
+      - export $(grep BASE_URL mu-env.sh)
       - echo '***** This is the current env:'
       - printenv
   build: