diff --git a/src/libfn.h b/src/libfn.h
index 4ee975c..500c5f4 100644
--- a/src/libfn.h
+++ b/src/libfn.h
@@ -39,7 +39,7 @@
 #define FN_INT_LINE TIOCM_CTS
 
 struct termios fn_init(int fd);
-size_t fn_send(int fd, struct remote_msg_t * msg);
+size_t fn_send(int fd, struct remote_msg_t *msg);
 size_t fn_send_mask(int fd, const char *mask, struct remote_msg_t *msg);
 size_t fn_sync(int fd);
 int fn_get_int(int fd);