diff --git a/target/linux/airoha/patches-6.12/920-13-net-airoha-Rework-MTU-configuration.patch b/target/linux/airoha/patches-6.12/920-13-net-airoha-Rework-MTU-configuration.patch
index 382de1ba07..072b50fe35 100644
--- a/target/linux/airoha/patches-6.12/920-13-net-airoha-Rework-MTU-configuration.patch
+++ b/target/linux/airoha/patches-6.12/920-13-net-airoha-Rework-MTU-configuration.patch
@@ -155,7 +155,7 @@ Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
  #define AIROHA_MAX_DSA_PORTS		7
  #define AIROHA_MAX_NUM_RSTS		3
  #define AIROHA_MAX_MTU			9220
-+#define AIROHA_MAX_RX_SIZE		16383
++#define AIROHA_MAX_RX_SIZE		16128
  #define AIROHA_MAX_PACKET_SIZE		2048
  #define AIROHA_NUM_QOS_CHANNELS		4
  #define AIROHA_NUM_QOS_QUEUES		8