diff --git a/util/ipaccess-auth.c b/util/ipaccess-auth.c
index e550f4a..e290acb 100644
--- a/util/ipaccess-auth.c
+++ b/util/ipaccess-auth.c
@@ -30,7 +30,7 @@
 }
 
 // nanoBTS Challenge/Response
-int ipaccess_telnet_auth(int sock)
+void ipaccess_telnet_auth(int sock)
 {
 	char buffer[512];
 	int rs;