diff --git a/fuzz_1.18_test.go b/fuzz_1.18_test.go
index 62a03c3..6d262c5 100644
--- a/fuzz_1.18_test.go
+++ b/fuzz_1.18_test.go
@@ -16,6 +16,8 @@ func FuzzBinary(f *testing.F) {
 	for _, c := range cases {
 		f.Add(c.binary)
 	}
+	f.Add([]byte("[$C#U\x010"))
+	f.Add([]byte("[$d#U\x190000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"))
 	const corpus = "testdata/bin/corpus"
 	if dir, err := testdata.ReadDir(corpus); err != nil {
 		f.Fatal("failed to read corpus dir:", err)
@@ -54,6 +56,7 @@ func FuzzBlock(f *testing.F) {
 	for _, c := range cases {
 		f.Add(c.block)
 	}
+	f.Add("[[][$][C][#][U][1][0]")
 	const corpus = "testdata/block/corpus"
 	if dir, err := testdata.ReadDir(corpus); err != nil {
 		f.Fatal("failed to read corpus dir:", err)
diff --git a/testdata/fuzz/FuzzBinary/52a8589fb3fbeb9e223a988400f8a0a12f2f1952d87f0bae9e950c94a90fabea b/testdata/fuzz/FuzzBinary/52a8589fb3fbeb9e223a988400f8a0a12f2f1952d87f0bae9e950c94a90fabea
deleted file mode 100644
index c9fab03..0000000
--- a/testdata/fuzz/FuzzBinary/52a8589fb3fbeb9e223a988400f8a0a12f2f1952d87f0bae9e950c94a90fabea
+++ /dev/null
@@ -1 +0,0 @@
-[]byte("[$d#U\x190000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000")
diff --git a/testdata/fuzz/FuzzBinary/b5ea624f1f6cd506a15f6ca3a5f86c38549135c789b8d97dbbf084d21369685f b/testdata/fuzz/FuzzBinary/b5ea624f1f6cd506a15f6ca3a5f86c38549135c789b8d97dbbf084d21369685f
deleted file mode 100644
index 15007ac..0000000
--- a/testdata/fuzz/FuzzBinary/b5ea624f1f6cd506a15f6ca3a5f86c38549135c789b8d97dbbf084d21369685f
+++ /dev/null
@@ -1 +0,0 @@
-[]byte("[$C#U\x010")
diff --git a/testdata/fuzz/FuzzBlock/6e80b181765c2b8b7791e98f75c5c8cbd830647bdbba557f2cfa63f6d7b197ca b/testdata/fuzz/FuzzBlock/6e80b181765c2b8b7791e98f75c5c8cbd830647bdbba557f2cfa63f6d7b197ca
deleted file mode 100644
index 00c6235..0000000
--- a/testdata/fuzz/FuzzBlock/6e80b181765c2b8b7791e98f75c5c8cbd830647bdbba557f2cfa63f6d7b197ca
+++ /dev/null
@@ -1 +0,0 @@
-string("[[][$][C][#][U][1][0]")