diff --git a/doc/source/development_saio.rst b/doc/source/development_saio.rst
index 2ec5ffbe22..1a88d4e811 100644
--- a/doc/source/development_saio.rst
+++ b/doc/source/development_saio.rst
@@ -584,6 +584,7 @@ Setting up scripts for running Swift
         #!/bin/bash
 
         swift-init all stop
+        find /var/log/swift -type f -exec rm -f {} \;
         sudo umount /mnt/sdb1
         sudo mkfs.xfs -f -i size=1024 /dev/sdb1
         sudo mount /mnt/sdb1