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-rw-r--r--util/prosodyctl/cert.lua2
1 files changed, 1 insertions, 1 deletions
diff --git a/util/prosodyctl/cert.lua b/util/prosodyctl/cert.lua
index 02c81585..abd2e1d6 100644
--- a/util/prosodyctl/cert.lua
+++ b/util/prosodyctl/cert.lua
@@ -163,7 +163,7 @@ local function copy(from, to, umask, owner, group)
local attrs = lfs.attributes(to);
if attrs then -- Move old file out of the way
local backup = to..".bkp~"..os.date("%FT%T", attrs.change);
- os.rename(to, backup);
+ assert(os.rename(to, backup));
end
-- FIXME friendlier error handling, maybe move above backup back?
local input = assert(io.open(from));