diff --git a/toxcore/DHT.c b/toxcore/DHT.c
index 9ebe11cf..8cd8852c 100644
--- a/toxcore/DHT.c
+++ b/toxcore/DHT.c
@@ -145,7 +145,7 @@ void get_shared_key(Shared_Keys *shared_keys, uint8_t *shared_key, const uint8_t
  */
 void DHT_get_shared_key_recv(DHT *dht, uint8_t *shared_key, const uint8_t *client_id)
 {
-    return get_shared_key(&dht->shared_keys_recv, shared_key, dht->self_secret_key, client_id);
+    get_shared_key(&dht->shared_keys_recv, shared_key, dht->self_secret_key, client_id);
 }
 
 /* Copy shared_key to encrypt/decrypt DHT packet from client_id into shared_key
@@ -153,7 +153,7 @@ void DHT_get_shared_key_recv(DHT *dht, uint8_t *shared_key, const uint8_t *clien
  */
 void DHT_get_shared_key_sent(DHT *dht, uint8_t *shared_key, const uint8_t *client_id)
 {
-    return get_shared_key(&dht->shared_keys_sent, shared_key, dht->self_secret_key, client_id);
+    get_shared_key(&dht->shared_keys_sent, shared_key, dht->self_secret_key, client_id);
 }
 
 void to_net_family(IP *ip)
diff --git a/toxcore/TCP_server.h b/toxcore/TCP_server.h
index 727c4b4e..ba3e7308 100644
--- a/toxcore/TCP_server.h
+++ b/toxcore/TCP_server.h
@@ -85,7 +85,7 @@ typedef struct TCP_Priority_List TCP_Priority_List;
 struct TCP_Priority_List {
     TCP_Priority_List *next;
     uint16_t size, sent;
-    uint8_t data[0];
+    uint8_t data[];
 };
 
 typedef struct TCP_Secure_Connection {
diff --git a/toxcore/network.c b/toxcore/network.c
index e8787127..22ee4202 100644
--- a/toxcore/network.c
+++ b/toxcore/network.c
@@ -813,7 +813,7 @@ void ipport_copy(IP_Port *target, const IP_Port *source)
         return;
 
     memcpy(target, source, sizeof(IP_Port));
-};
+}
 
 /* ip_ntoa
  *   converts ip into a string