diff --git a/mitmproxy/addons/clientplayback.py b/mitmproxy/addons/clientplayback.py
index c56c0e74a..13fbfebb8 100644
--- a/mitmproxy/addons/clientplayback.py
+++ b/mitmproxy/addons/clientplayback.py
@@ -203,7 +203,7 @@ class ClientPlayback:
             # https://github.com/mitmproxy/mitmproxy/issues/2197
             if hf.request.http_version == "HTTP/2.0":
                 hf.request.http_version = "HTTP/1.1"
-                host = hf.request.headers.pop(":authority")
+                host = hf.request.headers.pop(":authority", hf.request.pretty_host)
                 hf.request.headers.insert(0, "host", host)
             self.q.put(hf)
         ctx.master.addons.trigger("update", lst)