diff --git a/util/config_file.h b/util/config_file.h
index 7c81f1c57..a3479b28f 100644
--- a/util/config_file.h
+++ b/util/config_file.h
@@ -136,7 +136,7 @@ struct config_file {
 	size_t so_sndbuf;
 	/** SO_REUSEPORT requested on port 53 sockets */
 	int so_reuseport;
-	/** IP_TRANSPRENT socket option requested on port 53 sockets */
+	/** IP_TRANSPARENT socket option requested on port 53 sockets */
 	int ip_transparent;
 
 	/** number of interfaces to open. If 0 default all interfaces. */