diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index eeb54d3e..9977954b 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -52,6 +52,7 @@ jobs:
         echo "$SSH_KEY" > /home/runner/.ssh/ldpkey
         chmod 400 /home/runner/.ssh/ldpkey
         ssh-keyscan -p $LDPPORT -H $LDPHOST1 >> /home/runner/.ssh/known_hosts
+        chmod 400 /home/runner/.ssh/known_hosts
         #ssh-keyscan -p $LDPPORT -H $LDPHOST2 >> /home/runner/.ssh/known_hosts
         ssh -vv -p $LDPPORT -i /home/runner/.ssh/ldpkey $LDPUSER@$LDPHOST1 ls
         #ssh -vv -p $LDPPORT -i /home/runner/.ssh/ldpkey $LDPUSER@$LDPHOST2 ls