diff --git a/src/libxt_TS3INIT_SET_COOKIE.c b/src/libxt_TS3INIT_SET_COOKIE.c
index 66154ef..a1480ab 100644
--- a/src/libxt_TS3INIT_SET_COOKIE.c
+++ b/src/libxt_TS3INIT_SET_COOKIE.c
@@ -27,9 +27,10 @@ static void ts3init_set_cookie_tg_help(void)
     printf(
         "TS3INIT_SET_COOKIE target options:\n"
         "  --zero-random-sequence       Always return 0 as random sequence.\n"
-        "  --seed <seed>                Seed is a 60 byte lowercase hex number in.\n"
+        "  --seed <seed>                Seed is a %i byte lowercase hex number in.\n"
         "                               A source could be /dev/random.\n"
-        "  --seed-file <file>           Read the seed from a file.\n");
+        "  --seed-file <file>           Read the seed from a file.\n",
+        COOKIE_SEED_LEN);
 }
 
 static const struct option ts3init_set_cookie_tg_opts[] = {
diff --git a/src/libxt_ts3init_get_puzzle.c b/src/libxt_ts3init_get_puzzle.c
index e2b2ca0..2fc3b48 100644
--- a/src/libxt_ts3init_get_puzzle.c
+++ b/src/libxt_ts3init_get_puzzle.c
@@ -29,9 +29,10 @@ static void ts3init_get_puzzle_help(void)
         "ts3init_get_puzzle match options:\n"
         "  --min-client n               The sending client needs to be at least version.\n"
         "  --check-cookie               Check that the cookie was generated by same seed.\n"
-        "  --seed <seed>                Seed is a 60 byte lowercase hex number in.\n"
+        "  --seed <seed>                Seed is a %i byte lowercase hex number in.\n"
         "                               A source could be /dev/random.\n"
-        "  --seed-file <file>           Read the seed from a file.\n"
+        "  --seed-file <file>           Read the seed from a file.\n",
+        COOKIE_SEED_LEN
 );
 }
 
diff --git a/src/ts3init_cookie_seed.h b/src/ts3init_cookie_seed.h
index f4a39d1..bf1eae4 100644
--- a/src/ts3init_cookie_seed.h
+++ b/src/ts3init_cookie_seed.h
@@ -9,7 +9,7 @@ enum {
 static inline bool hex2int_seed(const char *src, __u8* dst)
 {
     int i, j;
-    for (i = 0; i < 60; ++i)
+    for (i = 0; i < COOKIE_SEED_LEN; ++i)
     {
         int v = 0;
         for ( j = 0; j < 2; ++j)