Fix #1430

src/utils.c

@@ -37,6 +37,7 @@
 
 #include <sodium.h>
 
+#include "crypto.h"
 #include "utils.h"
 
 #ifdef HAVE_SETRLIMIT
@@ -300,6 +301,10 @@ usage()
         "                                  camellia-256-cfb, bf-cfb,\n");
     printf(
         "                                  chacha20-ietf-poly1305,\n");
+#ifdef FS_HAVE_XCHACHA20IETF
+    printf(
+        "                                  xchacha20-ietf-poly1305,\n");
+#endif
     printf(
         "                                  salsa20, chacha20 and chacha20-ietf.\n");
     printf(