diff --git a/lib/kamal/configuration/proxy.rb b/lib/kamal/configuration/proxy.rb
index 84a343b8..dd5aac1d 100644
--- a/lib/kamal/configuration/proxy.rb
+++ b/lib/kamal/configuration/proxy.rb
@@ -46,11 +46,11 @@ class Kamal::Configuration::Proxy
       "health-check-timeout": proxy_config.dig("health_check", "timeout"),
       "health-check-path": proxy_config.dig("health_check", "path"),
       "target-timeout": proxy_config["response_timeout"],
-      "buffer-requests": proxy_config.fetch("buffer", { "requests": true }).fetch("requests", true),
-      "buffer-responses": proxy_config.fetch("buffer", { "responses": true }).fetch("responses", true),
-      "buffer-memory": proxy_config.dig("buffer", "memory"),
-      "max-request-body": proxy_config.dig("buffer", "max_request_body"),
-      "max-response-body": proxy_config.dig("buffer", "max_response_body"),
+      "buffer-requests": proxy_config.fetch("buffering", { "requests": true }).fetch("requests", true),
+      "buffer-responses": proxy_config.fetch("buffering", { "responses": true }).fetch("responses", true),
+      "buffer-memory": proxy_config.dig("buffering", "memory"),
+      "max-request-body": proxy_config.dig("buffering", "max_request_body"),
+      "max-response-body": proxy_config.dig("buffering", "max_response_body"),
       "forward-headers": proxy_config.dig("forward_headers"),
       "log-request-header": proxy_config.dig("logging", "request_headers") || DEFAULT_LOG_REQUEST_HEADERS,
       "log-response-header": proxy_config.dig("logging", "response_headers")