diff --git a/cubesatsim/cubesatsim.h b/cubesatsim/cubesatsim.h
index 5b8abf3e..15e50f5b 100644
--- a/cubesatsim/cubesatsim.h
+++ b/cubesatsim/cubesatsim.h
@@ -98,6 +98,7 @@ void write_little_endian(unsigned int word, int num_bytes, FILE *wav_file);
 static int init_rf();
 void test_radio();
 void configure_radio();
+void send_packet();
 
 extern int Encode_8b10b[][256];