diff --git a/porting/examples/linux_blemesh/include/syscfg/syscfg.h b/porting/examples/linux_blemesh/include/syscfg/syscfg.h
index a5ab87a6bd..a476d88917 100644
--- a/porting/examples/linux_blemesh/include/syscfg/syscfg.h
+++ b/porting/examples/linux_blemesh/include/syscfg/syscfg.h
@@ -1302,7 +1302,7 @@
 #endif
 
 #ifndef MYNEWT_VAL_BLE_MESH_PROXY_MSG_LEN
-#define MYNEWT_VAL_BLE_MESH_PROXY_MSG_LEN (33)
+#define MYNEWT_VAL_BLE_MESH_PROXY_MSG_LEN (66)
 #endif
 
 #ifndef MYNEWT_VAL_BLE_MESH_PROXY_USE_DEVICE_NAME