diff --git a/rffmpeg b/rffmpeg
index 6123f22..52e5c45 100755
--- a/rffmpeg
+++ b/rffmpeg
@@ -442,6 +442,7 @@ def run_ffmpeg(config, ffmpeg_args):
     signal.signal(signal.SIGTERM, cleanup)
     signal.signal(signal.SIGINT, cleanup)
     signal.signal(signal.SIGQUIT, cleanup)
+    signal.signal(signal.SIGKILL, cleanup)
     signal.signal(signal.SIGHUP, cleanup)
 
     if config["logdebug"] is True: