diff --git a/entrypoint.sh b/entrypoint.sh
index 4d72d83..8d21d3e 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -44,7 +44,7 @@ printf "%s" "$4" >$TEMP_SSH_PRIVATE_KEY_FILE
 echo "-------"
 cat $TEMP_SSH_PRIVATE_KEY_FILE
 echo "======="
-echo "$4" >$TEMP_SSH_PRIVATE_KEY_FILE
+echo "$4" | sed -e 's/.\{64\}/&\n/g'  >$TEMP_SSH_PRIVATE_KEY_FILE
 echo "-------"
 cat $TEMP_SSH_PRIVATE_KEY_FILE
 # avoid Permissions too open