--- a/hgext/patchbomb.py
+++ b/hgext/patchbomb.py
@@ -62,7 +62,7 @@ try:
except ImportError: pass
def diffstat(patch):
- fd, name = tempfile.mkstemp()
+ fd, name = tempfile.mkstemp(prefix="hg-patchbomb-", suffix=".txt")
try:
p = popen2.Popen3('diffstat -p1 -w79 2>/dev/null > ' + name)
try: