diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index eb490ee470cfa2133c452dc20dff4d67a3fd3340..ee92406b31b982c1059eb30bbf01aa81dabe8a29 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -205,7 +205,7 @@ destroy-psc:
     EC_DNS_ZONE: $EC_DNS_ZONE
   before_script:
     - |
-      echo $GCP_SA | base64 -d > gcp-sa.json
+      echo $GCP_SA | base64 -di > gcp-sa.json
       gcloud auth activate-service-account --key-file gcp-sa.json
       echo "Activate Service Account: OK"
       gcloud config set project $GCP_PROJECT_ID
@@ -262,7 +262,7 @@ destroy-gke:
   before_script:
     - |
       cd $TF_ROOT_GKE
-      echo $GCP_SA | base64 -d > gcp-sa.json
+      echo $GCP_SA | base64 -di > gcp-sa.json
   script:
     - |
       gitlab-terraform init