diff --git a/sample-btcd.conf b/sample-btcd.conf
index e2beb99c..0a765fca 100644
--- a/sample-btcd.conf
+++ b/sample-btcd.conf
@@ -324,7 +324,7 @@
 ; sizes have the highest priority.  One consequence of this is that as low-fee
 ; or free transactions age, they raise in priority thereby making them more
 ; likely to be included in this section of a new block.  This value is limited
-; by the blackmaxsize option and will be limited as needed.
+; by the blockmaxsize option and will be limited as needed.
 ; blockprioritysize=50000