diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 14e1a26..a726cad 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -60,8 +60,12 @@ jobs:
         run: |
           /bin/sh ./test/make_crypt4gh_files.sh
 
+      - name: List files in the directory
+        run: ls -l /test/client_certs
+
       - name: Transform Client Private Key to DER
         run: |
+          chmod 644 /test/client_certs/client.key
           openssl pkcs8 -topk8 -inform PEM -outform DER -in /test/client_certs/client.key -out /test/client_certs/client.der -nocrypt
 
       - name: Set up JDK