diff --git a/test/expected/hnsw_hamming.out b/test/expected/hnsw_hamming.out
index 5c73dc0..0483281 100644
--- a/test/expected/hnsw_hamming.out
+++ b/test/expected/hnsw_hamming.out
@@ -2,8 +2,8 @@ SET enable_seqscan = off;
 CREATE TABLE t (val bit(3));
 INSERT INTO t (val) VALUES (B'000'), (B'100'), (B'111'), (NULL);
 CREATE INDEX ON t USING hnsw (val bit_hamming_ops);
-INSERT INTO t (val) VALUES ('110');
-SELECT * FROM t ORDER BY val <~> '111';
+INSERT INTO t (val) VALUES (B'110');
+SELECT * FROM t ORDER BY val <~> B'111';
  val 
 -----
  111
diff --git a/test/sql/hnsw_hamming.sql b/test/sql/hnsw_hamming.sql
index 1e096e1..fb21511 100644
--- a/test/sql/hnsw_hamming.sql
+++ b/test/sql/hnsw_hamming.sql
@@ -4,9 +4,9 @@ CREATE TABLE t (val bit(3));
 INSERT INTO t (val) VALUES (B'000'), (B'100'), (B'111'), (NULL);
 CREATE INDEX ON t USING hnsw (val bit_hamming_ops);
 
-INSERT INTO t (val) VALUES ('110');
+INSERT INTO t (val) VALUES (B'110');
 
-SELECT * FROM t ORDER BY val <~> '111';
+SELECT * FROM t ORDER BY val <~> B'111';
 SELECT COUNT(*) FROM (SELECT * FROM t ORDER BY val <~> (SELECT NULL::bit)) t2;
 
 DROP TABLE t;