diff --git a/master.cfg b/master.cfg
index f13e772..81d9b7d 100644
--- a/master.cfg
+++ b/master.cfg
@@ -970,7 +970,7 @@ The parameters of the class are:
         # needed in order to cleanup the breakage lockfile, if it
         # exists.
         self.addStep (steps.MasterShellCommand (command = [ 'rm', '-f',
-                                                            util.Interpolate ('/tmp/gdb-buildbot-breakage-report-%(prop:branch)s-%(prop:buildername)s') ],
+                                                            util.Interpolate ('/tmp/gdb-buildbot-breakage-report-*-%(prop:branch)s-%(prop:buildername)s') ],
                                                 hideStepIf = True))
 
         # Disabling this until we figure out how to properly run + test