diff --git a/proxy/http/server/reverse.py b/proxy/http/server/reverse.py
index 11678d254b..d8a1489ab6 100644
--- a/proxy/http/server/reverse.py
+++ b/proxy/http/server/reverse.py
@@ -99,6 +99,7 @@ def handle_request(self, request: HttpParser) -> None:
                         self.choice.hostname,
                     ),
                     as_non_blocking=True,
+                    self.flags.ca_file
                 )
             request.path = self.choice.remainder
             self.upstream.queue(memoryview(request.build()))