diff --git a/subsys/net/ip/tcp.c b/subsys/net/ip/tcp.c
index ac8535ad9ad..b55a0504a87 100644
--- a/subsys/net/ip/tcp.c
+++ b/subsys/net/ip/tcp.c
@@ -548,7 +548,7 @@ int net_tcp_prepare_reset(struct net_tcp *tcp,
 	return 0;
 }
 
-const char const *net_tcp_state_str(enum net_tcp_state state)
+const char * const net_tcp_state_str(enum net_tcp_state state)
 {
 #if NET_DEBUG
 	switch (state) {
diff --git a/subsys/net/ip/tcp.h b/subsys/net/ip/tcp.h
index d81b8a01e6f..a25de75d77c 100644
--- a/subsys/net/ip/tcp.h
+++ b/subsys/net/ip/tcp.h
@@ -194,7 +194,7 @@ static inline int net_tcp_unregister(struct net_conn_handle *handle)
 	return net_conn_unregister(handle);
 }
 
-const char const *net_tcp_state_str(enum net_tcp_state state);
+const char * const net_tcp_state_str(enum net_tcp_state state);
 
 #if defined(CONFIG_NET_TCP)
 void net_tcp_change_state(struct net_tcp *tcp, enum net_tcp_state new_state);