diff --git a/tools/python/xen/xend/XendAPI.py b/tools/python/xen/xend/XendAPI.py
index 2413dd62d7..c64b38ec21 100644
--- a/tools/python/xen/xend/XendAPI.py
+++ b/tools/python/xen/xend/XendAPI.py
@@ -996,6 +996,7 @@ class XendAPI(object):
         log_buffer = log_file.read()
         log_buffer = log_buffer.replace('\b', ' ')
         log_buffer = log_buffer.replace('\f', '\n')
+        log_file.close()
         return xen_api_success(log_buffer)
 
     def host_send_debug_keys(self, _, host_ref, keys):