diff --git a/loop.c b/loop.c
index 95dc4da..90be491 100644
--- a/loop.c
+++ b/loop.c
@@ -59,7 +59,7 @@
 
 
 extern char *auth_token;
-extern int test_dc;
+int test_dc = 0;
 int default_dc_num;
 extern int binlog_enabled;
 
diff --git a/main.c b/main.c
index ff68e14..0894f86 100644
--- a/main.c
+++ b/main.c
@@ -89,7 +89,7 @@ char *secret_chat_file_name;
 char *downloads_directory;
 char *config_directory;
 char *binlog_file_name;
-int binlog_enabled;
+extern int binlog_enabled;
 extern int log_level;
 int log_level = 1;
 int sync_from_start;
diff --git a/queries.c b/queries.c
index 6de2a83..86c3170 100644
--- a/queries.c
+++ b/queries.c
@@ -71,12 +71,9 @@ long long cur_uploaded_bytes;
 long long cur_downloading_bytes;
 long long cur_downloaded_bytes;
 
-extern int binlog_enabled;
 extern int sync_from_start;
 int sync_from_start = 0;
 
-//int queries_num = 0;
-
 void telegram_flush_queries (struct telegram *instance) {
    instance->on_output(instance);
 }
diff --git a/structures.c b/structures.c
index 30501f0..de7f5c5 100644
--- a/structures.c
+++ b/structures.c
@@ -65,7 +65,6 @@ int our_id;
 int verbosity;
 
 peer_t *Peers[MAX_PEER_NUM];
-extern int binlog_enabled;
 
 
 void fetch_skip_photo (struct mtproto_connection *mtp);