diff --git a/examples/lock-app/silabs/include/CHIPProjectConfig.h b/examples/lock-app/silabs/include/CHIPProjectConfig.h
index 87d7485558c659..ae0cbaf1b3ac68 100644
--- a/examples/lock-app/silabs/include/CHIPProjectConfig.h
+++ b/examples/lock-app/silabs/include/CHIPProjectConfig.h
@@ -100,3 +100,5 @@
  *
  */
 #define CHIP_CONFIG_MRP_LOCAL_ACTIVE_RETRY_INTERVAL (2000_ms32)
+
+#define CHIP_DEVICE_CONFIG_ENABLE_EXTENDED_DISCOVERY 1