diff --git a/server/modules/routing/binlog/blr_slave.c b/server/modules/routing/binlog/blr_slave.c
index 61e85981b..2f7a327b6 100644
--- a/server/modules/routing/binlog/blr_slave.c
+++ b/server/modules/routing/binlog/blr_slave.c
@@ -2403,7 +2403,7 @@ int	len, id_len, seqno = 2;
 	blr_slave_send_eof(router, slave, seqno++);
 
 	ptr = GWBUF_DATA(pkt);
-	encode_value(ptr, len - 4), 24);	// Add length of data packet
+	encode_value(ptr, len - 4, 24);	// Add length of data packet
 	ptr += 3;
 	*ptr++ = seqno++;					// Sequence number in response