diff --git a/broker/session.py b/broker/session.py
index 91b33326..4f3a5ea8 100644
--- a/broker/session.py
+++ b/broker/session.py
@@ -27,7 +27,9 @@
         | ssh2_sftp.LIBSSH2_SFTP_S_IRGRP
         | ssh2_sftp.LIBSSH2_SFTP_S_IROTH
     )
-    FILE_FLAGS = ssh2_sftp.LIBSSH2_FXF_CREAT | ssh2_sftp.LIBSSH2_FXF_WRITE
+    FILE_FLAGS = (
+        ssh2_sftp.LIBSSH2_FXF_CREAT | ssh2_sftp.LIBSSH2_FXF_WRITE | ssh2_sftp.LIBSSH2_FXF_TRUNC
+    )
 except ImportError:
     logger.warning(
         "ssh2-python is not installed, ssh actions will not work.\n"