diff --git a/TODO.txt b/TODO.txt
index 6b9f573..3e77219 100644
--- a/TODO.txt
+++ b/TODO.txt
@@ -8,4 +8,6 @@
 
 3. Add support for configuration files, which can be specified via a command-line arg
 
-4. Fix Makefile - Doesn't recompile if source files have changed, only if .o files have.
+---SHOULD BE DONE---- 4. Fix Makefile - Doesn't recompile if source files have changed, only if .o files have.
+
+5. Check IPv6 support for remote socket
diff --git a/main.c b/main.c
index b950f07..a799350 100644
--- a/main.c
+++ b/main.c
@@ -40,7 +40,7 @@ int main(int argc,char* argv[]) {
 	int preferred_remote_network = check_ip_ver(remote_addr);
 	printf("Using %d for local\nUsing %d for remote\n",preferred_local_network,preferred_remote_network);
 	
-	if ((preferred_local_network == -1) && (preferred_remote_network == -1)) {
+	if ((preferred_local_network == -1) || (preferred_remote_network == -1)) {
 		exit(-7);
 	}