diff --git a/lib/isc/random.c b/lib/isc/random.c
index c7bfcdf566..697ead5152 100644
--- a/lib/isc/random.c
+++ b/lib/isc/random.c
@@ -109,7 +109,7 @@ isc_random_seed(isc_uint32_t seed) {
 	arc4random_addrandom((u_char *) &seed, sizeof(isc_uint32_t));
 #else
        /*
-	* If arcrandom() is available and no corresponding seeding
+	* If arc4random() is available and no corresponding seeding
 	* function arc4random_addrandom() is available, no seeding is
 	* done on such platforms (e.g., OpenBSD 5.5).  This is because
 	* the OS itself is supposed to seed the RNG and it is assumed