diff --git a/src/openvpn/common.h b/src/openvpn/common.h
index aa7b7217..fbe6239a 100644
--- a/src/openvpn/common.h
+++ b/src/openvpn/common.h
@@ -67,7 +67,7 @@ typedef unsigned long ptr_type;
  * maximum size of a single TLS message (cleartext).
  * This parameter must be >= PUSH_BUNDLE_SIZE
  */
-#define TLS_CHANNEL_BUF_SIZE 2048
+#define TLS_CHANNEL_BUF_SIZE 8192
 
 /* TLS control buffer minimum size
  *