diff --git a/sys/include/net/loramac.h b/sys/include/net/loramac.h
index 1ab6e09cdc..48b432a802 100644
--- a/sys/include/net/loramac.h
+++ b/sys/include/net/loramac.h
@@ -145,23 +145,6 @@ extern "C" {
 #define CONFIG_LORAMAC_DEFAULT_PRIVATE_NETWORK
 #endif
 
-/**
- * @brief   Default network type (public or private)
- *
- * This configuration sets the sync word for LoRaWAN communication. This should
- * be in concordance with the gateway configuration. Public networks use `0x34`
- * while private networks use `0x12` as sync word.
- * @deprecated Use inverse @ref CONFIG_LORAMAC_DEFAULT_PRIVATE_NETWORK instead.
- * Will be removed after 2021.04 release.
- */
-#ifndef LORAMAC_DEFAULT_PUBLIC_NETWORK
-#if IS_ACTIVE(CONFIG_LORAMAC_DEFAULT_PRIVATE_NETWORK)
-#define LORAMAC_DEFAULT_PUBLIC_NETWORK          (false)
-#else
-#define LORAMAC_DEFAULT_PUBLIC_NETWORK          (true)
-#endif
-#endif
-
 /**
  * @brief   Default datarate index
  *