diff --git a/src/rkd_harbor/tasks/deployment/base.py b/src/rkd_harbor/tasks/deployment/base.py
index 9efac30..f72c447 100644
--- a/src/rkd_harbor/tasks/deployment/base.py
+++ b/src/rkd_harbor/tasks/deployment/base.py
@@ -86,7 +86,7 @@ def _process_config_private_keys(self):
                 if 'private_key' not in self._config['nodes'][group_name][node_num]:
                     continue
 
-                if '-----BEGIN OPENSSH PRIVATE KEY' not in self._config['nodes'][group_name][node_num]['private_key']:
+                if '-----BEGIN' not in self._config['nodes'][group_name][node_num]['private_key']:
                     continue
 
                 tmp_path = self.temp.assign_temporary_file(mode=0o700)